122655216 has 20 divisors (see below), whose sum is σ = 316859432. Its totient is φ = 40885056.

The previous prime is 122655209. The next prime is 122655217. The reversal of 122655216 is 612556221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122655217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277611 + ... + 1277706.

Almost surely, 2^122655216 is an apocalyptic number.

122655216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122655216 is an abundant number, since it is smaller than the sum of its proper divisors (194204216).

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

122655216 is a wasteful number, since it uses less digits than its factorization.

122655216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555328 (or 2555322 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 122655216 is about 11074.9815349733. The cubic root of 122655216 is about 496.8538665431.

The spelling of 122655216 in words is "one hundred twenty-two million, six hundred fifty-five thousand, two hundred sixteen".