122297988 has 48 divisors (see below), whose sum is σ = 298327680. Its totient is φ = 38943744.

The previous prime is 122297963. The next prime is 122297999. The reversal of 122297988 is 889792221.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31945 + ... + 35567.

It is an arithmetic number, because the mean of its divisors is an integer number (6215160).

Almost surely, 2^122297988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122297988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149163840).

122297988 is an abundant number, since it is smaller than the sum of its proper divisors (176029692).

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

122297988 is a wasteful number, since it uses less digits than its factorization.

122297988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756 (or 3754 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 122297988 is about 11058.8420732010. The cubic root of 122297988 is about 496.3710423879.

The spelling of 122297988 in words is "one hundred twenty-two million, two hundred ninety-seven thousand, nine hundred eighty-eight".