222212331 has 24 divisors (see below), whose sum is σ = 354384576. Its totient is φ = 133046640.

The previous prime is 222212327. The next prime is 222212351. The reversal of 222212331 is 133212222.

It is not a de Polignac number, because 222212331 - 2² = 222212327 is a prime.

It is a super-2 number, since 2×222212331² = 98756640096907122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222212351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5305 + ... + 21738.

It is an arithmetic number, because the mean of its divisors is an integer number (14766024).

Almost surely, 2^222212331 is an apocalyptic number.

222212331 is a deficient number, since it is larger than the sum of its proper divisors (132172245).

222212331 is a wasteful number, since it uses less digits than its factorization.

222212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27143 (or 27140 counting only the distinct ones).

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

The square root of 222212331 is about 14906.7880846278. The cubic root of 222212331 is about 605.6978773722.

Adding to 222212331 its reverse (133212222), we get a palindrome (355424553).

The spelling of 222212331 in words is "two hundred twenty-two million, two hundred twelve thousand, three hundred thirty-one".