222724131945 has 32 divisors (see below), whose sum is σ = 407286359040. Its totient is φ = 101811902400.

The previous prime is 222724131919. The next prime is 222724131983. The reversal of 222724131945 is 549131427222.

It is not a de Polignac number, because 222724131945 - 2⁵ = 222724131913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222724131897 and 222724131906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3098826 + ... + 3169884.

It is an arithmetic number, because the mean of its divisors is an integer number (12727698720).

Almost surely, 2^222724131945 is an apocalyptic number.

It is an amenable number.

222724131945 is a deficient number, since it is larger than the sum of its proper divisors (184562227095).

222724131945 is a wasteful number, since it uses less digits than its factorization.

222724131945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100925.

The product of its digits is 241920, while the sum is 42.

The spelling of 222724131945 in words is "two hundred twenty-two billion, seven hundred twenty-four million, one hundred thirty-one thousand, nine hundred forty-five".