222191915 has 16 divisors (see below), whose sum is σ = 297966816. Its totient is φ = 157651200.

The previous prime is 222191903. The next prime is 222191923. The reversal of 222191915 is 519191222.

It is not a de Polignac number, because 222191915 - 2¹⁶ = 222126379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47012 + ... + 51521.

It is an arithmetic number, because the mean of its divisors is an integer number (18622926).

Almost surely, 2^222191915 is an apocalyptic number.

222191915 is a deficient number, since it is larger than the sum of its proper divisors (75774901).

222191915 is a wasteful number, since it uses less digits than its factorization.

222191915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98590.

The product of its digits is 3240, while the sum is 32.

The square root of 222191915 is about 14906.1032802004. The cubic root of 222191915 is about 605.6793270867.

The spelling of 222191915 in words is "two hundred twenty-two million, one hundred ninety-one thousand, nine hundred fifteen".