122561288 has 16 divisors (see below), whose sum is σ = 230145360. Its totient is φ = 61189200.

The previous prime is 122561209. The next prime is 122561293. The reversal of 122561288 is 882165221.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 5558 + ... + 16613.

It is an arithmetic number, because the mean of its divisors is an integer number (14384085).

Almost surely, 2^122561288 is an apocalyptic number.

It is an amenable number.

122561288 is a deficient number, since it is larger than the sum of its proper divisors (107584072).

122561288 is a wasteful number, since it uses less digits than its factorization.

122561288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22868 (or 22864 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 122561288 is about 11070.7401739902. The cubic root of 122561288 is about 496.7270057667.

The spelling of 122561288 in words is "one hundred twenty-two million, five hundred sixty-one thousand, two hundred eighty-eight".