123130022111212 has 24 divisors (see below), whose sum is σ = 218066637484080. Its totient is φ = 60826335229440.

The previous prime is 123130022111207. The next prime is 123130022111237. The reversal of 123130022111212 is 212111220031321.

It is a happy number.

It is a super-2 number, since 2×123130022111212² (a number of 29 digits) contains 22 as substring.

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, 132873214 + ... + 133796677.

It is an arithmetic number, because the mean of its divisors is an integer number (9086109895170).

Almost surely, 2^{123130022111212} is an apocalyptic number.

It is an amenable number.

123130022111212 is a deficient number, since it is larger than the sum of its proper divisors (94936615372868).

123130022111212 is a wasteful number, since it uses less digits than its factorization.

123130022111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266671281 (or 266671279 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 123130022111212 its reverse (212111220031321), we get a palindrome (335241242142533).

The spelling of 123130022111212 in words is "one hundred twenty-three trillion, one hundred thirty billion, twenty-two million, one hundred eleven thousand, two hundred twelve".