122665388 has 24 divisors (see below), whose sum is σ = 225235584. Its totient is φ = 58377600.

The previous prime is 122665339. The next prime is 122665427. The reversal of 122665388 is 883566221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545 + ... + 15672.

It is an arithmetic number, because the mean of its divisors is an integer number (9384816).

Almost surely, 2^122665388 is an apocalyptic number.

It is an amenable number.

122665388 is a deficient number, since it is larger than the sum of its proper divisors (102570196).

122665388 is a wasteful number, since it uses less digits than its factorization.

122665388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16313 (or 16311 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 122665388 is about 11075.4407587238. The cubic root of 122665388 is about 496.8676011345.

The spelling of 122665388 in words is "one hundred twenty-two million, six hundred sixty-five thousand, three hundred eighty-eight".