122656650 has 24 divisors (see below), whose sum is σ = 304188864. Its totient is φ = 32708400.

The previous prime is 122656643. The next prime is 122656661. The reversal of 122656650 is 56656221.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408706 + ... + 409005.

It is an arithmetic number, because the mean of its divisors is an integer number (12674536).

Almost surely, 2^122656650 is an apocalyptic number.

122656650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122656650 is an abundant number, since it is smaller than the sum of its proper divisors (181532214).

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

122656650 is a wasteful number, since it uses less digits than its factorization.

122656650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817726 (or 817721 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 122656650 is about 11075.0462752984. The cubic root of 122656650 is about 496.8558028262.

It can be divided in two parts, 12265 and 6650, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 122656650 in words is "one hundred twenty-two million, six hundred fifty-six thousand, six hundred fifty".