222004431 has 12 divisors (see below), whose sum is σ = 349825320. Its totient is φ = 134548080.

The previous prime is 222004429. The next prime is 222004501. The reversal of 222004431 is 134400222.

222004431 is a `hidden beast` number, since 2 + 220 + 0 + 443 + 1 = 666.

It is not a de Polignac number, because 222004431 - 2¹ = 222004429 is a prime.

It is a super-2 number, since 2×222004431² = 98571934767267522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222004631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1121136 + ... + 1121333.

It is an arithmetic number, because the mean of its divisors is an integer number (29152110).

Almost surely, 2^222004431 is an apocalyptic number.

222004431 is a deficient number, since it is larger than the sum of its proper divisors (127820889).

222004431 is a wasteful number, since it uses less digits than its factorization.

222004431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242486 (or 2242483 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222004431 is about 14899.8131196334. The cubic root of 222004431 is about 605.5089231411.

Adding to 222004431 its reverse (134400222), we get a palindrome (356404653).

The spelling of 222004431 in words is "two hundred twenty-two million, four thousand, four hundred thirty-one".