222400522 has 8 divisors (see below), whose sum is σ = 340698816. Its totient is φ = 108834252.

The previous prime is 222400513. The next prime is 222400553. The reversal of 222400522 is 225004222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 222400522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182888 + ... + 1183075.

It is an arithmetic number, because the mean of its divisors is an integer number (42587352).

Almost surely, 2^222400522 is an apocalyptic number.

222400522 is a deficient number, since it is larger than the sum of its proper divisors (118298294).

222400522 is a wasteful number, since it uses less digits than its factorization.

222400522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366012.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 222400522 is about 14913.0990072486. The cubic root of 222400522 is about 605.8688170698.

Adding to 222400522 its reverse (225004222), we get a palindrome (447404744).

The spelling of 222400522 in words is "two hundred twenty-two million, four hundred thousand, five hundred twenty-two".