3123021222112 has 48 divisors (see below), whose sum is σ = 6888678903792. Its totient is φ = 1381188741120.

The previous prime is 3123021222089. The next prime is 3123021222163. The reversal of 3123021222112 is 2112221203213.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 119881833 + ... + 119907880.

It is an arithmetic number, because the mean of its divisors is an integer number (143514143829).

Almost surely, 2^{3123021222112} is an apocalyptic number.

3123021222112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3123021222112 is an abundant number, since it is smaller than the sum of its proper divisors (3765657681680).

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

3123021222112 is a wasteful number, since it uses less digits than its factorization.

3123021222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239789771 (or 239789763 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 3123021222112 its reverse (2112221203213), we get a palindrome (5235242425325).

The spelling of 3123021222112 in words is "three trillion, one hundred twenty-three billion, twenty-one million, two hundred twenty-two thousand, one hundred twelve".