212031312223302 has 64 divisors (see below), whose sum is σ = 553554941022720. Its totient is φ = 59309457962400.

The previous prime is 212031312223271. The next prime is 212031312223327. The reversal of 212031312223302 is 203322213130212.

212031312223302 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 3 + 131 + 2 + 223 + 302 = 666.

It is a super-2 number, since 2×212031312223302² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13729033474 + ... + 13729048917.

It is an arithmetic number, because the mean of its divisors is an integer number (8649295953480).

Almost surely, 2^{212031312223302} is an apocalyptic number.

212031312223302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212031312223302 is an abundant number, since it is smaller than the sum of its proper divisors (341523628799418).

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

212031312223302 is a wasteful number, since it uses less digits than its factorization.

212031312223302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27458082426 (or 27458082420 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 212031312223302 its reverse (203322213130212), we get a palindrome (415353525353514).

The spelling of 212031312223302 in words is "two hundred twelve trillion, thirty-one billion, three hundred twelve million, two hundred twenty-three thousand, three hundred two".