122100012112 has 40 divisors (see below), whose sum is σ = 255522501416. Its totient is φ = 56186597376.

The previous prime is 122100012103. The next prime is 122100012131. The reversal of 122100012112 is 211210001221.

It can be written as a sum of positive squares in 4 ways, for example, as 3320525376 + 118779486736 = 57624^2 + 344644^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 122100012092 and 122100012101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800853 + ... + 941044.

Almost surely, 2^122100012112 is an apocalyptic number.

It is an amenable number.

122100012112 is an abundant number, since it is smaller than the sum of its proper divisors (133422489304).

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

122100012112 is a wasteful number, since it uses less digits than its factorization.

122100012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742255 (or 1742249 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122100012112 its reverse (211210001221), we get a palindrome (333310013333).

The spelling of 122100012112 in words is "one hundred twenty-two billion, one hundred million, twelve thousand, one hundred twelve".