222487999 has 2 divisors, whose sum is σ = 222488000. Its totient is φ = 222487998.

The previous prime is 222487981. The next prime is 222488003. The reversal of 222487999 is 999784222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222487999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222487399) by changing a digit.

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 as a sum of consecutive naturals, namely, 111243999 + 111244000.

It is an arithmetic number, because the mean of its divisors is an integer number (111244000).

Almost surely, 2^222487999 is an apocalyptic number.

222487999 is a deficient number, since it is larger than the sum of its proper divisors (1).

222487999 is an equidigital number, since it uses as much as digits as its factorization.

222487999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 222487999 is about 14916.0316103178. The cubic root of 222487999 is about 605.9482423019.

The spelling of 222487999 in words is "two hundred twenty-two million, four hundred eighty-seven thousand, nine hundred ninety-nine".