222209516 has 12 divisors (see below), whose sum is σ = 411741288. Its totient is φ = 104569152.

The previous prime is 222209497. The next prime is 222209521. The reversal of 222209516 is 615902222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633826 + ... + 1633961.

It is an arithmetic number, because the mean of its divisors is an integer number (34311774).

Almost surely, 2^222209516 is an apocalyptic number.

It is an amenable number.

222209516 is a deficient number, since it is larger than the sum of its proper divisors (189531772).

222209516 is a wasteful number, since it uses less digits than its factorization.

222209516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267808 (or 3267806 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 222209516 is about 14906.6936642570. The cubic root of 222209516 is about 605.6953196883.

The spelling of 222209516 in words is "two hundred twenty-two million, two hundred nine thousand, five hundred sixteen".