122280988 has 12 divisors (see below), whose sum is σ = 220894912. Its totient is φ = 59168160.

The previous prime is 122280973. The next prime is 122280989. The reversal of 122280988 is 889082221.

It is a super-2 number, since 2×122280988² = 29905280052512288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 122280988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122280989) 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, 492945 + ... + 493192.

Almost surely, 2^122280988 is an apocalyptic number.

It is an amenable number.

122280988 is a deficient number, since it is larger than the sum of its proper divisors (98613924).

122280988 is a wasteful number, since it uses less digits than its factorization.

122280988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986172 (or 986170 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 122280988 is about 11058.0734307564. The cubic root of 122280988 is about 496.3480420130.

The spelling of 122280988 in words is "one hundred twenty-two million, two hundred eighty thousand, nine hundred eighty-eight".