122220221112 has 96 divisors (see below), whose sum is σ = 373170176400. Its totient is φ = 37036422720.

The previous prime is 122220221093. The next prime is 122220221131. The reversal of 122220221112 is 211122022221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122220221093) and next prime (122220221131).

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

It is a congruent number.

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, 2312023 + ... + 2364294.

Almost surely, 2^122220221112 is an apocalyptic number.

122220221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122220221112 is an abundant number, since it is smaller than the sum of its proper divisors (250949955288).

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

122220221112 is a wasteful number, since it uses less digits than its factorization.

122220221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676354 (or 4676333 counting only the distinct ones).

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

Adding to 122220221112 its reverse (211122022221), we get a palindrome (333342243333).

The spelling of 122220221112 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".