212316238155 has 32 divisors (see below), whose sum is σ = 388267089408. Its totient is φ = 97050931200.

The previous prime is 212316238151. The next prime is 212316238157. The reversal of 212316238155 is 551832613212.

It is not a de Polignac number, because 212316238155 - 2² = 212316238151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212316238151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1323915 + ... + 1475595.

It is an arithmetic number, because the mean of its divisors is an integer number (12133346544).

Almost surely, 2^212316238155 is an apocalyptic number.

212316238155 is a deficient number, since it is larger than the sum of its proper divisors (175950851253).

212316238155 is a wasteful number, since it uses less digits than its factorization.

212316238155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165027.

The product of its digits is 86400, while the sum is 39.

The spelling of 212316238155 in words is "two hundred twelve billion, three hundred sixteen million, two hundred thirty-eight thousand, one hundred fifty-five".