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2020122012020 = 225714429442943
BaseRepresentation
bin11101011001011000101…
…001111010100101110100
321011010021202221222020112
4131121120221322211310
5231044202213341040
64144010425322152
7265643335533110
oct35313051724564
97133252858215
102020122012020
11709802236292
1228761a936358
1311865c2bb968
146dabb056740
15378347ea365
hex1d658a7a974

2020122012020 has 24 divisors (see below), whose sum is σ = 4848292829184. Its totient is φ = 692613261216.

The previous prime is 2020122011993. The next prime is 2020122012023. The reversal of 2020122012020 is 202102210202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2020122011986 and 2020122012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020122012023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214721332 + ... + 7214721611.

It is an arithmetic number, because the mean of its divisors is an integer number (202012201216).

Almost surely, 22020122012020 is an apocalyptic number.

2020122012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020122012020 is an abundant number, since it is smaller than the sum of its proper divisors (2828170817164).

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

2020122012020 is a wasteful number, since it uses less digits than its factorization.

2020122012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429442959 (or 14429442957 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2020122012020 its reverse (202102210202), we get a palindrome (2222224222222).

The spelling of 2020122012020 in words is "two trillion, twenty billion, one hundred twenty-two million, twelve thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 14429442943 28858885886 57717771772 72147214715 101006100601 144294429430 202012201202 288588858860 404024402404 505030503005 1010061006010 2020122012020