12122020992 has 64 divisors (see below), whose sum is σ = 32226818400. Its totient is φ = 4037197824.

The previous prime is 12122020961. The next prime is 12122021017. The reversal of 12122020992 is 29902022121.

It is a tau number, because it is divible by the number of its divisors (64).

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, 454359 + ... + 480297.

Almost surely, 2^12122020992 is an apocalyptic number.

12122020992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122020992 is an abundant number, since it is smaller than the sum of its proper divisors (20104797408).

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

12122020992 is a wasteful number, since it uses less digits than its factorization.

12122020992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27173 (or 27161 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 12122020992 in words is "twelve billion, one hundred twenty-two million, twenty thousand, nine hundred ninety-two".