12212032112 has 40 divisors (see below), whose sum is σ = 27444541056. Its totient is φ = 5155609536.

The previous prime is 12212032099. The next prime is 12212032123. The reversal of 12212032112 is 21123021221.

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, 806198 + ... + 821205.

Almost surely, 2^12212032112 is an apocalyptic number.

It is an amenable number.

12212032112 is an abundant number, since it is smaller than the sum of its proper divisors (15232508944).

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

12212032112 is a wasteful number, since it uses less digits than its factorization.

12212032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627485 (or 1627479 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12212032112 its reverse (21123021221), we get a palindrome (33335053333).

The spelling of 12212032112 in words is "twelve billion, two hundred twelve million, thirty-two thousand, one hundred twelve".