222004331 has 4 divisors (see below), whose sum is σ = 222794664. Its totient is φ = 221214000.

The previous prime is 222004319. The next prime is 222004351. The reversal of 222004331 is 133400222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222004331 - 2¹⁸ = 221742187 is a prime.

It is a super-2 number, since 2×222004331² = 98571845965515122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222004301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394745 + ... + 395306.

It is an arithmetic number, because the mean of its divisors is an integer number (55698666).

Almost surely, 2^222004331 is an apocalyptic number.

222004331 is a deficient number, since it is larger than the sum of its proper divisors (790333).

222004331 is an equidigital number, since it uses as much as digits as its factorization.

222004331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790332.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222004331 is about 14899.8097638862. The cubic root of 222004331 is about 605.5088322257.

Adding to 222004331 its reverse (133400222), we get a palindrome (355404553).

The spelling of 222004331 in words is "two hundred twenty-two million, four thousand, three hundred thirty-one".