222204431 has 8 divisors (see below), whose sum is σ = 225142560. Its totient is φ = 219276288.

The previous prime is 222204421. The next prime is 222204533. The reversal of 222204431 is 134402222.

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 222204431 - 2¹⁰ = 222203407 is a prime.

It is a super-2 number, since 2×222204431² = 98749618312067522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222204401) 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, 49190 + ... + 53516.

It is an arithmetic number, because the mean of its divisors is an integer number (28142820).

Almost surely, 2^222204431 is an apocalyptic number.

222204431 is a deficient number, since it is larger than the sum of its proper divisors (2938129).

222204431 is an equidigital number, since it uses as much as digits as its factorization.

222204431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 222204431 is about 14906.5231023200. The cubic root of 222204431 is about 605.6906994478.

Adding to 222204431 its reverse (134402222), we get a palindrome (356606653).

The spelling of 222204431 in words is "two hundred twenty-two million, two hundred four thousand, four hundred thirty-one".