112221022122 has 48 divisors (see below), whose sum is σ = 274396243680. Its totient is φ = 32833735200.

The previous prime is 112221022103. The next prime is 112221022139. The reversal of 112221022122 is 221220122211.

It is a happy number.

It is a super-2 number, since 2×112221022122² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112221022095 and 112221022104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9766204 + ... + 9777687.

It is an arithmetic number, because the mean of its divisors is an integer number (5716588410).

Almost surely, 2^112221022122 is an apocalyptic number.

112221022122 is an abundant number, since it is smaller than the sum of its proper divisors (162175221558).

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

112221022122 is a wasteful number, since it uses less digits than its factorization.

112221022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19543939 (or 19543936 counting only the distinct ones).

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

Adding to 112221022122 its reverse (221220122211), we get a palindrome (333441144333).

The spelling of 112221022122 in words is "one hundred twelve billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty-two".