112120200200021 has 16 divisors (see below), whose sum is σ = 120886661776944. Its totient is φ = 103374071506944.

The previous prime is 112120200200017. The next prime is 112120200200093. The reversal of 112120200200021 is 120002002021211.

It can be written as a sum of positive squares in 8 ways, for example, as 27976546389796 + 84143653810225 = 5289286^2 + 9172985^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120200200021 - 2² = 112120200200017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112120200199969 and 112120200200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120200200011) 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, 36276785 + ... + 39245961.

It is an arithmetic number, because the mean of its divisors is an integer number (7555416361059).

Almost surely, 2^{112120200200021} is an apocalyptic number.

It is an amenable number.

112120200200021 is a deficient number, since it is larger than the sum of its proper divisors (8766461576923).

112120200200021 is a wasteful number, since it uses less digits than its factorization.

112120200200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972600.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 112120200200021 its reverse (120002002021211), we get a palindrome (232122202221232).

The spelling of 112120200200021 in words is "one hundred twelve trillion, one hundred twenty billion, two hundred million, two hundred thousand, twenty-one".