122170816 has 28 divisors (see below), whose sum is σ = 248351040. Its totient is φ = 59594240.

The previous prime is 122170801. The next prime is 122170819. The reversal of 122170816 is 618071221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122170819) 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 3 ways as a sum of consecutive naturals, for example, 20656 + ... + 25903.

It is an arithmetic number, because the mean of its divisors is an integer number (8869680).

Almost surely, 2^122170816 is an apocalyptic number.

122170816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122170816 is an abundant number, since it is smaller than the sum of its proper divisors (126180224).

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

122170816 is an equidigital number, since it uses as much as digits as its factorization.

122170816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46612 (or 46602 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 122170816 is about 11053.0907894579. The cubic root of 122170816 is about 496.1989316499.

The spelling of 122170816 in words is "one hundred twenty-two million, one hundred seventy thousand, eight hundred sixteen".