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2120010102020 = 2253531252723971
BaseRepresentation
bin11110110110011010011…
…100101111010100000100
321111200010011000200211102
4132312122130233110010
5234213240041231040
64301530313555232
7306110553353306
oct36663234572404
97450104020742
102120010102020
11748100485788
122a2a57115b18
13124bba877865
14748752a5976
153a22dccb515
hex1ed9a72f504

2120010102020 has 48 divisors (see below), whose sum is σ = 4465175839488. Its totient is φ = 845498987520.

The previous prime is 2120010102011. The next prime is 2120010102031. The reversal of 2120010102020 is 202010100212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120010101992 and 2120010102010.

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, 88428635 + ... + 88452605.

It is an arithmetic number, because the mean of its divisors is an integer number (93024496656).

Almost surely, 22120010102020 is an apocalyptic number.

2120010102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120010102020 is an abundant number, since it is smaller than the sum of its proper divisors (2345165737468).

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

2120010102020 is a wasteful number, since it uses less digits than its factorization.

2120010102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36860 (or 36858 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2120010102020 its reverse (202010100212), we get a palindrome (2322020202232).

The spelling of 2120010102020 in words is "two trillion, one hundred twenty billion, ten million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 353 706 1412 1765 3530 7060 12527 23971 25054 47942 50108 62635 95884 119855 125270 239710 250540 479420 4422031 8461763 8844062 16923526 17688124 22110155 33847052 42308815 44220310 84617630 88440620 169235260 300284717 600569434 1201138868 1501423585 3002847170 6005694340 106000505101 212001010202 424002020404 530002525505 1060005051010 2120010102020