222272587 has 2 divisors, whose sum is σ = 222272588. Its totient is φ = 222272586.

The previous prime is 222272563. The next prime is 222272591. The reversal of 222272587 is 785272222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222272587 - 2⁷ = 222272459 is a prime.

It is not a weakly prime, because it can be changed into another prime (222272527) 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, 111136293 + 111136294.

It is an arithmetic number, because the mean of its divisors is an integer number (111136294).

Almost surely, 2^222272587 is an apocalyptic number.

222272587 is a deficient number, since it is larger than the sum of its proper divisors (1).

222272587 is an equidigital number, since it uses as much as digits as its factorization.

222272587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 37.

The square root of 222272587 is about 14908.8090402956. The cubic root of 222272587 is about 605.7526202582.

The spelling of 222272587 in words is "two hundred twenty-two million, two hundred seventy-two thousand, five hundred eighty-seven".