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2020100222220 = 223542179972297
BaseRepresentation
bin11101011001010111010…
…110110010110100001100
321011010020020221221020220
4131121113112302310030
5231044131124102340
64144004330311340
7265642652401023
oct35312726626414
97133206857226
102020100222220
117097a0a03293
12287613588550
1311865792c9a2
146dab81c38ba
1537832943ed0
hex1d6575b2d0c

2020100222220 has 48 divisors (see below), whose sum is σ = 5669716039008. Its totient is φ = 537413829120.

The previous prime is 2020100222201. The next prime is 2020100222227. The reversal of 2020100222220 is 222220010202.

It is a super-3 number, since 3×20201002222203 (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2020100222220.

It is not an unprimeable number, because it can be changed into a prime (2020100222227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39960889 + ... + 40011408.

It is an arithmetic number, because the mean of its divisors is an integer number (118119084146).

Almost surely, 22020100222220 is an apocalyptic number.

2020100222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020100222220 is an abundant number, since it is smaller than the sum of its proper divisors (3649615816788).

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

2020100222220 is a wasteful number, since it uses less digits than its factorization.

2020100222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79972730 (or 79972728 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2020100222220 its reverse (222220010202), we get a palindrome (2242320232422).

The spelling of 2020100222220 in words is "two trillion, twenty billion, one hundred million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 421 842 1263 1684 2105 2526 4210 5052 6315 8420 12630 25260 79972297 159944594 239916891 319889188 399861485 479833782 799722970 959667564 1199584455 1599445940 2399168910 4798337820 33668337037 67336674074 101005011111 134673348148 168341685185 202010022222 336683370370 404020044444 505025055555 673366740740 1010050111110 2020100222220