122200156 has 24 divisors (see below), whose sum is σ = 231147504. Its totient is φ = 56192640.

The previous prime is 122200087. The next prime is 122200157. The reversal of 122200156 is 651002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200157) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10431 + ... + 18793.

It is an arithmetic number, because the mean of its divisors is an integer number (9631146).

Almost surely, 2^122200156 is an apocalyptic number.

It is an amenable number.

122200156 is a deficient number, since it is larger than the sum of its proper divisors (108947348).

122200156 is a wasteful number, since it uses less digits than its factorization.

122200156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8661 (or 8659 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 122200156 is about 11054.4179403531. The cubic root of 122200156 is about 496.2386501136.

Adding to 122200156 its reverse (651002221), we get a palindrome (773202377).

The spelling of 122200156 in words is "one hundred twenty-two million, two hundred thousand, one hundred fifty-six".