222312135 has 16 divisors (see below), whose sum is σ = 371165184. Its totient is φ = 113411232.

The previous prime is 222312071. The next prime is 222312151. The reversal of 222312135 is 531213222.

It is not a de Polignac number, because 222312135 - 2⁶ = 222312071 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321847 + ... + 322536.

It is an arithmetic number, because the mean of its divisors is an integer number (23197824).

Almost surely, 2^222312135 is an apocalyptic number.

222312135 is a deficient number, since it is larger than the sum of its proper divisors (148853049).

222312135 is a wasteful number, since it uses less digits than its factorization.

222312135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644414.

The product of its digits is 720, while the sum is 21.

The square root of 222312135 is about 14910.1353112572. The cubic root of 222312135 is about 605.7885444423.

Adding to 222312135 its reverse (531213222), we get a palindrome (753525357).

The spelling of 222312135 in words is "two hundred twenty-two million, three hundred twelve thousand, one hundred thirty-five".