222215455 has 32 divisors (see below), whose sum is σ = 334591488. Its totient is φ = 137635200.

The previous prime is 222215447. The next prime is 222215473. The reversal of 222215455 is 554512222.

It is not a de Polignac number, because 222215455 - 2³ = 222215447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60985 + ... + 64525.

It is an arithmetic number, because the mean of its divisors is an integer number (10455984).

Almost surely, 2^222215455 is an apocalyptic number.

222215455 is a deficient number, since it is larger than the sum of its proper divisors (112376033).

222215455 is a wasteful number, since it uses less digits than its factorization.

222215455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727.

The product of its digits is 8000, while the sum is 28.

The square root of 222215455 is about 14906.8928687369. The cubic root of 222215455 is about 605.7007157855.

Adding to 222215455 its reverse (554512222), we get a palindrome (776727677).

The spelling of 222215455 in words is "two hundred twenty-two million, two hundred fifteen thousand, four hundred fifty-five".