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2112202131020 = 225105610106551
BaseRepresentation
bin11110101111001001000…
…011101100011001001100
321110220221222221200012022
4132233021003230121030
5234101242221143040
64254155434025312
7305413223611412
oct36571103543114
97426858850168
102112202131020
11744864046593
122a1438278238
1312424505a887
14743343072b2
1539e235b36b5
hex1ebc90ec64c

2112202131020 has 12 divisors (see below), whose sum is σ = 4435624475184. Its totient is φ = 844880852400.

The previous prime is 2112202131001. The next prime is 2112202131037. The reversal of 2112202131020 is 201312022112.

It is a super-2 number, since 2×21122021310202 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112202131020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52805053256 + ... + 52805053295.

It is an arithmetic number, because the mean of its divisors is an integer number (369635372932).

Almost surely, 22112202131020 is an apocalyptic number.

2112202131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112202131020 is an abundant number, since it is smaller than the sum of its proper divisors (2323422344164).

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

2112202131020 is a wasteful number, since it uses less digits than its factorization.

2112202131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105610106560 (or 105610106558 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2112202131020 its reverse (201312022112), we get a palindrome (2313514153132).

The spelling of 2112202131020 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 105610106551 211220213102 422440426204 528050532755 1056101065510 2112202131020