122388216 has 32 divisors (see below), whose sum is σ = 307584000. Its totient is φ = 40580960.

The previous prime is 122388209. The next prime is 122388247. The reversal of 122388216 is 612883221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8766 + ... + 17933.

It is an arithmetic number, because the mean of its divisors is an integer number (9612000).

Almost surely, 2^122388216 is an apocalyptic number.

It is an amenable number.

122388216 is an abundant number, since it is smaller than the sum of its proper divisors (185195784).

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

122388216 is a wasteful number, since it uses less digits than its factorization.

122388216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26899 (or 26895 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 122388216 is about 11062.9207716588. The cubic root of 122388216 is about 496.4930818904.

The spelling of 122388216 in words is "one hundred twenty-two million, three hundred eighty-eight thousand, two hundred sixteen".