222198404 has 6 divisors (see below), whose sum is σ = 388847214. Its totient is φ = 111099200.

The previous prime is 222198373. The next prime is 222198409. The reversal of 222198404 is 404891222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 138109504 + 84088900 = 11752^2 + 9170^2 .

It is not an unprimeable number, because it can be changed into a prime (222198409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27774797 + ... + 27774804.

It is an arithmetic number, because the mean of its divisors is an integer number (64807869).

Almost surely, 2^222198404 is an apocalyptic number.

It is an amenable number.

222198404 is a deficient number, since it is larger than the sum of its proper divisors (166648810).

222198404 is a wasteful number, since it uses less digits than its factorization.

222198404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55549605 (or 55549603 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 222198404 is about 14906.3209411310. The cubic root of 222198404 is about 605.6852232131.

The spelling of 222198404 in words is "two hundred twenty-two million, one hundred ninety-eight thousand, four hundred four".