122218416 has 40 divisors (see below), whose sum is σ = 350813360. Its totient is φ = 40739328.

The previous prime is 122218403. The next prime is 122218433. The reversal of 122218416 is 614812221.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a self number, because there is not a number n which added to its sum of digits gives 122218416.

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, 141025 + ... + 141888.

It is an arithmetic number, because the mean of its divisors is an integer number (8770334).

Almost surely, 2^122218416 is an apocalyptic number.

122218416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122218416 is an abundant number, since it is smaller than the sum of its proper divisors (228594944).

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

122218416 is a wasteful number, since it uses less digits than its factorization.

122218416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282930 (or 282918 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 122218416 is about 11055.2438236341. The cubic root of 122218416 is about 496.2633660298.

The spelling of 122218416 in words is "one hundred twenty-two million, two hundred eighteen thousand, four hundred sixteen".