222312952943172 has 576 divisors, whose sum is σ = 722579608977408. Its totient is φ = 56057339520000.

The previous prime is 222312952943111. The next prime is 222312952943183. The reversal of 222312952943172 is 271349259213222.

222312952943172 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 1 + 2 + 9 + 529 + 43 + 1 + 72 = 666.

It is a super-2 number, since 2×222312952943172² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4790068647 + ... + 4790115057.

It is an arithmetic number, because the mean of its divisors is an integer number (1254478487808).

Almost surely, 2^{222312952943172} 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 222312952943172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361289804488704).

222312952943172 is an abundant number, since it is smaller than the sum of its proper divisors (500266656034236).

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

222312952943172 is a wasteful number, since it uses less digits than its factorization.

222312952943172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47040 (or 47035 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 222312952943172 in words is "two hundred twenty-two trillion, three hundred twelve billion, nine hundred fifty-two million, nine hundred forty-three thousand, one hundred seventy-two".