222666115 has 16 divisors (see below), whose sum is σ = 308399040. Its totient is φ = 151171200.

The previous prime is 222666113. The next prime is 222666139. The reversal of 222666115 is 511666222.

222666115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222666115 - 2¹ = 222666113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222666113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27960 + ... + 35029.

It is an arithmetic number, because the mean of its divisors is an integer number (19274940).

Almost surely, 2^222666115 is an apocalyptic number.

222666115 is a deficient number, since it is larger than the sum of its proper divisors (85732925).

222666115 is a wasteful number, since it uses less digits than its factorization.

222666115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63102.

The product of its digits is 8640, while the sum is 31.

The square root of 222666115 is about 14922.0010387347. The cubic root of 222666115 is about 606.1098993936.

Subtracting from 222666115 its sum of digits (31), we obtain a square (222666084 = 14922²).

The spelling of 222666115 in words is "two hundred twenty-two million, six hundred sixty-six thousand, one hundred fifteen".