222506972929 has 4 divisors (see below), whose sum is σ = 222679326640. Its totient is φ = 222334619220.

The previous prime is 222506972923. The next prime is 222506972951. The reversal of 222506972929 is 929279605222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222506972929 - 2³ = 222506972921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222506972929.

It is not an unprimeable number, because it can be changed into a prime (222506972921) 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, 86174919 + ... + 86177500.

It is an arithmetic number, because the mean of its divisors is an integer number (55669831660).

Almost surely, 2^222506972929 is an apocalyptic number.

It is an amenable number.

222506972929 is a deficient number, since it is larger than the sum of its proper divisors (172353711).

222506972929 is a wasteful number, since it uses less digits than its factorization.

222506972929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172353710.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 222506972929 in words is "two hundred twenty-two billion, five hundred six million, nine hundred seventy-two thousand, nine hundred twenty-nine".