222405331 has 16 divisors (see below), whose sum is σ = 242009856. Its totient is φ = 203819616.

The previous prime is 222405311. The next prime is 222405343. The reversal of 222405331 is 133504222.

It is a cyclic number.

It is not a de Polignac number, because 222405331 - 2¹⁷ = 222274259 is a prime.

It is a super-2 number, since 2×222405331² = 98928262514439122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222405311) 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, 50296 + ... + 54538.

It is an arithmetic number, because the mean of its divisors is an integer number (15125616).

Almost surely, 2^222405331 is an apocalyptic number.

222405331 is a deficient number, since it is larger than the sum of its proper divisors (19604525).

222405331 is a wasteful number, since it uses less digits than its factorization.

222405331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 222405331 is about 14913.2602404706. The cubic root of 222405331 is about 605.8731839693.

Adding to 222405331 its reverse (133504222), we get a palindrome (355909553).

The spelling of 222405331 in words is "two hundred twenty-two million, four hundred five thousand, three hundred thirty-one".