123211012120212 has 24 divisors (see below), whose sum is σ = 290456200396096. Its totient is φ = 40646931833088.

The previous prime is 123211012120193. The next prime is 123211012120213. The reversal of 123211012120212 is 212021210112321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123211012120213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52925691328 + ... + 52925693655.

Almost surely, 2^{123211012120212} is an apocalyptic number.

123211012120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123211012120212 is an abundant number, since it is smaller than the sum of its proper divisors (167245188275884).

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

123211012120212 is a wasteful number, since it uses less digits than its factorization.

123211012120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105851385087 (or 105851385085 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 123211012120212 its reverse (212021210112321), we get a palindrome (335232222232533).

The spelling of 123211012120212 in words is "one hundred twenty-three trillion, two hundred eleven billion, twelve million, one hundred twenty thousand, two hundred twelve".