212113121022312 has 32 divisors (see below), whose sum is σ = 535533127339680. Its totient is φ = 70004330369600.

The previous prime is 212113121022307. The next prime is 212113121022347. The reversal of 212113121022312 is 213220121311212.

It is a super-2 number, since 2×212113121022312² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 43752704058 + ... + 43752708905.

It is an arithmetic number, because the mean of its divisors is an integer number (16735410229365).

Almost surely, 2^{212113121022312} is an apocalyptic number.

It is an amenable number.

212113121022312 is an abundant number, since it is smaller than the sum of its proper divisors (323420006317368).

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

212113121022312 is a wasteful number, since it uses less digits than its factorization.

212113121022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87505413073 (or 87505413069 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 212113121022312 its reverse (213220121311212), we get a palindrome (425333242333524).

The spelling of 212113121022312 in words is "two hundred twelve trillion, one hundred thirteen billion, one hundred twenty-one million, twenty-two thousand, three hundred twelve".