123321112201212 has 12 divisors (see below), whose sum is σ = 287749261802856. Its totient is φ = 41107037400400.

The previous prime is 123321112201151. The next prime is 123321112201241. The reversal of 123321112201212 is 212102211123321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5138379675039 + ... + 5138379675062.

It is an arithmetic number, because the mean of its divisors is an integer number (23979105150238).

Almost surely, 2^{123321112201212} is an apocalyptic number.

123321112201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123321112201212 is an abundant number, since it is smaller than the sum of its proper divisors (164428149601644).

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

123321112201212 is a wasteful number, since it uses less digits than its factorization.

123321112201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276759350108 (or 10276759350106 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 123321112201212 its reverse (212102211123321), we get a palindrome (335423323324533).

The spelling of 123321112201212 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, one hundred twelve million, two hundred one thousand, two hundred twelve".