123012242215212 has 96 divisors (see below), whose sum is σ = 339467279872000. Its totient is φ = 33926927189760.

The previous prime is 123012242215147. The next prime is 123012242215253. The reversal of 123012242215212 is 212512242210321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123012242215212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58462087 + ... + 60529662.

Almost surely, 2^{123012242215212} is an apocalyptic number.

123012242215212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123012242215212 is an abundant number, since it is smaller than the sum of its proper divisors (216455037656788).

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

123012242215212 is a wasteful number, since it uses less digits than its factorization.

123012242215212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118992191 (or 118992189 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 123012242215212 its reverse (212512242210321), we get a palindrome (335524484425533).

The spelling of 123012242215212 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty-two million, two hundred fifteen thousand, two hundred twelve".