12122021021112 has 24 divisors (see below), whose sum is σ = 32830473599040. Its totient is φ = 4040673673680.

The previous prime is 12122021021093. The next prime is 12122021021147. The reversal of 12122021021112 is 21112012022121.

12122021021112 is a `hidden beast` number, since 1 + 21 + 220 + 210 + 211 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 84180701464 + ... + 84180701607.

It is an arithmetic number, because the mean of its divisors is an integer number (1367936399960).

Almost surely, 2^{12122021021112} is an apocalyptic number.

12122021021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122021021112 is an abundant number, since it is smaller than the sum of its proper divisors (20708452577928).

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

12122021021112 is a wasteful number, since it uses less digits than its factorization.

12122021021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168361403083 (or 168361403076 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12122021021112 its reverse (21112012022121), we get a palindrome (33234033043233).

The spelling of 12122021021112 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, twenty-one thousand, one hundred twelve".