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2020121002020 = 2235115775304661
BaseRepresentation
bin11101011001011000100…
…110000100000000100100
321011010021201001122210010
4131121120212010000210
5231044201434031040
64144010351530220
7265643324125362
oct35313046040044
97133251048703
102020121002020
11709801706480
1228761a529970
1311865c027024
146dabac72632
153783469ae80
hex1d658984024

2020121002020 has 96 divisors (see below), whose sum is σ = 6181246786176. Its totient is φ = 488877465600.

The previous prime is 2020121002007. The next prime is 2020121002033. The reversal of 2020121002020 is 202001210202.

It is an interprime number because it is at equal distance from previous prime (2020121002007) and next prime (2020121002033).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2020121001987 and 2020121002005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2271511 + ... + 3033150.

It is an arithmetic number, because the mean of its divisors is an integer number (64387987356).

Almost surely, 22020121002020 is an apocalyptic number.

2020121002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020121002020 is an abundant number, since it is smaller than the sum of its proper divisors (4161125784156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020121002020 is a wasteful number, since it uses less digits than its factorization.

2020121002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305261 (or 5305259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2020121002020 its reverse (202001210202), we get a palindrome (2222122212222).

The spelling of 2020121002020 in words is "two trillion, twenty billion, one hundred twenty-one million, two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 577 660 1154 1731 2308 2885 3462 5770 6347 6924 8655 11540 12694 17310 19041 25388 31735 34620 38082 63470 76164 95205 126940 190410 380820 5304661 10609322 15913983 21218644 26523305 31827966 53046610 58351271 63655932 79569915 106093220 116702542 159139830 175053813 233405084 291756355 318279660 350107626 583512710 700215252 875269065 1167025420 1750538130 3060789397 3501076260 6121578794 9182368191 12243157588 15303946985 18364736382 30607893970 33668683367 36729472764 45911840955 61215787940 67337366734 91823681910 101006050101 134674733468 168343416835 183647363820 202012100202 336686833670 404024200404 505030250505 673373667340 1010060501010 2020121002020