212222124253044 has 144 divisors (see below), whose sum is σ = 551540568458880. Its totient is φ = 68778676592640.

The previous prime is 212222124253033. The next prime is 212222124253063. The reversal of 212222124253044 is 440352421222212.

212222124253044 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 221 + 2 + 425 + 3 + 0 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1301742967 + ... + 1301905985.

It is an arithmetic number, because the mean of its divisors is an integer number (3830142836520).

Almost surely, 2^{212222124253044} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212222124253044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275770284229440).

212222124253044 is an abundant number, since it is smaller than the sum of its proper divisors (339318444205836).

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

212222124253044 is a wasteful number, since it uses less digits than its factorization.

212222124253044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170150 (or 170145 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 212222124253044 its reverse (440352421222212), we get a palindrome (652574545475256).

The spelling of 212222124253044 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred twenty-four million, two hundred fifty-three thousand, forty-four".