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20102202002120 = 2357118760483217
BaseRepresentation
bin1001001001000011010001…
…00111000000101011001000
32122011202022000120010221112
410210201220213000223020
510113323302203031440
6110430454001425452
74143223206505430
oct444415047005310
978152260503845
1020102202002120
116450328a6a9a7
122307b3693b288
13b2a8250761c4
144d6d4791b2c0
1524cd87585965
hex1248689c0ac8

20102202002120 has 64 divisors (see below), whose sum is σ = 51734925348480. Its totient is φ = 6886377040896.

The previous prime is 20102202002117. The next prime is 20102202002161. The reversal of 20102202002120 is 2120020220102.

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 = 20102202002095 and 20102202002104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29909249 + ... + 30573968.

It is an arithmetic number, because the mean of its divisors is an integer number (808358208570).

Almost surely, 220102202002120 is an apocalyptic number.

20102202002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102202002120 is an abundant number, since it is smaller than the sum of its proper divisors (31632723346360).

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

20102202002120 is a wasteful number, since it uses less digits than its factorization.

20102202002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60484422 (or 60484418 counting only the distinct ones).

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

Adding to 20102202002120 its reverse (2120020220102), we get a palindrome (22222222222222).

The spelling of 20102202002120 in words is "twenty trillion, one hundred two billion, two hundred two million, two thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 1187 2374 4748 5935 8309 9496 11870 16618 23740 33236 41545 47480 66472 83090 166180 332360 60483217 120966434 241932868 302416085 423382519 483865736 604832170 846765038 1209664340 1693530076 2116912595 2419328680 3387060152 4233825190 8467650380 16935300760 71793578579 143587157158 287174314316 358967892895 502555050053 574348628632 717935785790 1005110100106 1435871571580 2010220200212 2512775250265 2871743143160 4020440400424 5025550500530 10051101001060 20102202002120