222400136 has 16 divisors (see below), whose sum is σ = 476571840. Its totient is φ = 95314320.

The previous prime is 222400127. The next prime is 222400151. The reversal of 222400136 is 631004222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985660 + ... + 1985771.

It is an arithmetic number, because the mean of its divisors is an integer number (29785740).

Almost surely, 2^222400136 is an apocalyptic number.

It is an amenable number.

222400136 is an abundant number, since it is smaller than the sum of its proper divisors (254171704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222400136 is a wasteful number, since it uses less digits than its factorization.

222400136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971444 (or 3971440 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 222400136 is about 14913.0860656002. The cubic root of 222400136 is about 605.8684665528.

Adding to 222400136 its reverse (631004222), we get a palindrome (853404358).

The spelling of 222400136 in words is "two hundred twenty-two million, four hundred thousand, one hundred thirty-six".