12220112112 has 40 divisors (see below), whose sum is σ = 33996980304. Its totient is φ = 3760034304.

The previous prime is 12220112087. The next prime is 12220112131. The reversal of 12220112112 is 21121102221.

It is a super-2 number, since 2×12220112112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220112091 and 12220112100.

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, 9791133 + ... + 9792380.

Almost surely, 2^12220112112 is an apocalyptic number.

12220112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220112112 is an abundant number, since it is smaller than the sum of its proper divisors (21776868192).

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

12220112112 is a wasteful number, since it uses less digits than its factorization.

12220112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19583537 (or 19583531 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12220112112 its reverse (21121102221), we get a palindrome (33341214333).

The spelling of 12220112112 in words is "twelve billion, two hundred twenty million, one hundred twelve thousand, one hundred twelve".