112202020000021 has 4 divisors (see below), whose sum is σ = 128230880000032. Its totient is φ = 96173160000012.

The previous prime is 112202019999997. The next prime is 112202020000043. The reversal of 112202020000021 is 120000020202211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112202020000021 - 2¹³ = 112202019991829 is a prime.

It is a super-2 number, since 2×112202020000021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112202019999956 and 112202020000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112202020010021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8014429999995 + ... + 8014430000008.

It is an arithmetic number, because the mean of its divisors is an integer number (32057720000008).

Almost surely, 2^{112202020000021} is an apocalyptic number.

It is an amenable number.

112202020000021 is a deficient number, since it is larger than the sum of its proper divisors (16028860000011).

112202020000021 is an equidigital number, since it uses as much as digits as its factorization.

112202020000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028860000010.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 112202020000021 its reverse (120000020202211), we get a palindrome (232202040202232).

The spelling of 112202020000021 in words is "one hundred twelve trillion, two hundred two billion, twenty million, twenty-one", and thus it is an aban number.