312132012222212 has 48 divisors (see below), whose sum is σ = 672286227537792. Its totient is φ = 123480448254720.

The previous prime is 312132012222193. The next prime is 312132012222229. The reversal of 312132012222212 is 212222210231213.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156435368 + ... + 158418080.

It is an arithmetic number, because the mean of its divisors is an integer number (14005963073704).

Almost surely, 2^{312132012222212} is an apocalyptic number.

It is an amenable number.

312132012222212 is an abundant number, since it is smaller than the sum of its proper divisors (360154215315580).

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

312132012222212 is a wasteful number, since it uses less digits than its factorization.

312132012222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415228 (or 2415226 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 312132012222212 its reverse (212222210231213), we get a palindrome (524354222453425).

The spelling of 312132012222212 in words is "three hundred twelve trillion, one hundred thirty-two billion, twelve million, two hundred twenty-two thousand, two hundred twelve".