222989187 has 16 divisors (see below), whose sum is σ = 331378560. Its totient is φ = 132550272.

The previous prime is 222989167. The next prime is 222989189. The reversal of 222989187 is 781989222.

It is not a de Polignac number, because 222989187 - 2⁷ = 222989059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222989189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114093 + ... + 116030.

It is an arithmetic number, because the mean of its divisors is an integer number (20711160).

Almost surely, 2^222989187 is an apocalyptic number.

222989187 is a deficient number, since it is larger than the sum of its proper divisors (108389373).

222989187 is a wasteful number, since it uses less digits than its factorization.

222989187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230162.

The product of its digits is 290304, while the sum is 48.

The square root of 222989187 is about 14932.8224726607. The cubic root of 222989187 is about 606.4028978864.

The spelling of 222989187 in words is "two hundred twenty-two million, nine hundred eighty-nine thousand, one hundred eighty-seven".