212291917210944 has 84 divisors (see below), whose sum is σ = 640522579191040. Its totient is φ = 67039552800000.

The previous prime is 212291917210943. The next prime is 212291917210979. The reversal of 212291917210944 is 449012719192212.

212291917210944 is a `hidden beast` number, since 2 + 12 + 291 + 91 + 7 + 210 + 9 + 44 = 666.

It is a super-2 number, since 2×212291917210944² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212291917210943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9698998432 + ... + 9699020319.

Almost surely, 2^{212291917210944} is an apocalyptic number.

212291917210944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212291917210944 is an abundant number, since it is smaller than the sum of its proper divisors (428230661980096).

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

212291917210944 is a wasteful number, since it uses less digits than its factorization.

212291917210944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19398018788 (or 19398018775 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 212291917210944 in words is "two hundred twelve trillion, two hundred ninety-one billion, nine hundred seventeen million, two hundred ten thousand, nine hundred forty-four".