112212022221 has 32 divisors (see below), whose sum is σ = 180800336640. Its totient is φ = 68369832000.

The previous prime is 112212022201. The next prime is 112212022277. The reversal of 112212022221 is 122220212211.

It is a happy number.

It is not a de Polignac number, because 112212022221 - 2²³ = 112203633613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112212022194 and 112212022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212022201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1547185 + ... + 1618086.

It is an arithmetic number, because the mean of its divisors is an integer number (5650010520).

Almost surely, 2^112212022221 is an apocalyptic number.

It is an amenable number.

112212022221 is a deficient number, since it is larger than the sum of its proper divisors (68588314419).

112212022221 is a wasteful number, since it uses less digits than its factorization.

112212022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165394 (or 3165388 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112212022221 its reverse (122220212211), we get a palindrome (234432234432).

The spelling of 112212022221 in words is "one hundred twelve billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".