222568406772 has 12 divisors (see below), whose sum is σ = 519326282496. Its totient is φ = 74189468920.

The previous prime is 222568406759. The next prime is 222568406779. The reversal of 222568406772 is 277604865222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222568406779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9273683604 + ... + 9273683627.

It is an arithmetic number, because the mean of its divisors is an integer number (43277190208).

Almost surely, 2^222568406772 is an apocalyptic number.

It is an amenable number.

222568406772 is an abundant number, since it is smaller than the sum of its proper divisors (296757875724).

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

222568406772 is a wasteful number, since it uses less digits than its factorization.

222568406772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18547367238 (or 18547367236 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 222568406772 in words is "two hundred twenty-two billion, five hundred sixty-eight million, four hundred six thousand, seven hundred seventy-two".