222797506 has 4 divisors (see below), whose sum is σ = 334196262. Its totient is φ = 111398752.

The previous prime is 222797479. The next prime is 222797513. The reversal of 222797506 is 605797222.

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

It can be written as a sum of positive squares in only one way, i.e., 211848025 + 10949481 = 14555^2 + 3309^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55699375 + ... + 55699378.

Almost surely, 2^222797506 is an apocalyptic number.

222797506 is a deficient number, since it is larger than the sum of its proper divisors (111398756).

222797506 is a wasteful number, since it uses less digits than its factorization.

222797506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111398755.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 222797506 is about 14926.4029826345. The cubic root of 222797506 is about 606.2290938906.

The spelling of 222797506 in words is "two hundred twenty-two million, seven hundred ninety-seven thousand, five hundred six".