122220012112 has 20 divisors (see below), whose sum is σ = 258328662336. Its totient is φ = 55554550880.

The previous prime is 122220012073. The next prime is 122220012139. The reversal of 122220012112 is 211210022221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347215768 + ... + 347216119.

Almost surely, 2^122220012112 is an apocalyptic number.

It is an amenable number.

122220012112 is an abundant number, since it is smaller than the sum of its proper divisors (136108650224).

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

122220012112 is a wasteful number, since it uses less digits than its factorization.

122220012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694431906 (or 694431900 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122220012112 its reverse (211210022221), we get a palindrome (333430034333).

The spelling of 122220012112 in words is "one hundred twenty-two billion, two hundred twenty million, twelve thousand, one hundred twelve".