222122331 has 40 divisors (see below), whose sum is σ = 352981200. Its totient is φ = 138801600.

The previous prime is 222122309. The next prime is 222122333. The reversal of 222122331 is 133221222.

It is not a de Polignac number, because 222122331 - 2⁶ = 222122267 is a prime.

It is a super-2 number, since 2×222122331² = 98676659857747122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222122333) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 154725 + ... + 156153.

It is an arithmetic number, because the mean of its divisors is an integer number (8824530).

Almost surely, 2^222122331 is an apocalyptic number.

222122331 is a deficient number, since it is larger than the sum of its proper divisors (130858869).

222122331 is a wasteful number, since it uses less digits than its factorization.

222122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1552 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222122331 is about 14903.7690199493. The cubic root of 222122331 is about 605.6160934767.

Adding to 222122331 its reverse (133221222), we get a palindrome (355343553).

The spelling of 222122331 in words is "two hundred twenty-two million, one hundred twenty-two thousand, three hundred thirty-one".