222042931 has 8 divisors (see below), whose sum is σ = 242532864. Its totient is φ = 201603720.

The previous prime is 222042893. The next prime is 222042941. The reversal of 222042931 is 139240222.

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 222042931 - 2⁷ = 222042803 is a prime.

It is a super-2 number, since 2×222042931² = 98606126414141522, 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 = 222042896 and 222042905.

It is not an unprimeable number, because it can be changed into a prime (222042941) 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, 3211 + ... + 21316.

It is an arithmetic number, because the mean of its divisors is an integer number (30316608).

Almost surely, 2^222042931 is an apocalyptic number.

222042931 is a deficient number, since it is larger than the sum of its proper divisors (20489933).

222042931 is a wasteful number, since it uses less digits than its factorization.

222042931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25361.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 222042931 is about 14901.1050261382. The cubic root of 222042931 is about 605.5439235628.

The spelling of 222042931 in words is "two hundred twenty-two million, forty-two thousand, nine hundred thirty-one".