222345931 has 8 divisors (see below), whose sum is σ = 224338320. Its totient is φ = 220359168.

The previous prime is 222345901. The next prime is 222345979. The reversal of 222345931 is 139543222.

222345931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222345931 - 2¹⁵ = 222313163 is a prime.

It is a super-2 number, since 2×222345931² = 98875426064513522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222345893 and 222345902.

It is not an unprimeable number, because it can be changed into a prime (222345901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126400 + ... + 128146.

It is an arithmetic number, because the mean of its divisors is an integer number (28042290).

Almost surely, 2^222345931 is an apocalyptic number.

222345931 is a deficient number, since it is larger than the sum of its proper divisors (1992389).

222345931 is a wasteful number, since it uses less digits than its factorization.

222345931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813.

The product of its digits is 12960, while the sum is 31.

The square root of 222345931 is about 14911.2685912366. The cubic root of 222345931 is about 605.8192403109.

The spelling of 222345931 in words is "two hundred twenty-two million, three hundred forty-five thousand, nine hundred thirty-one".