122551996 has 12 divisors (see below), whose sum is σ = 245104048. Its totient is φ = 52522272.

The previous prime is 122551973. The next prime is 122552009. The reversal of 122551996 is 699155221.

122551996 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188401 + ... + 2188456.

Almost surely, 2^122551996 is an apocalyptic number.

It is an amenable number.

122551996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122551996 is a wasteful number, since it uses less digits than its factorization.

122551996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376868 (or 4376866 counting only the distinct ones).

The product of its digits is 48600, while the sum is 40.

The square root of 122551996 is about 11070.3205012321. The cubic root of 122551996 is about 496.7144523086.

The spelling of 122551996 in words is "one hundred twenty-two million, five hundred fifty-one thousand, nine hundred ninety-six".