122128008 has 32 divisors (see below), whose sum is σ = 305864160. Its totient is φ = 40636800.

The previous prime is 122128001. The next prime is 122128037. The reversal of 122128008 is 800821221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (122128001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10191 + ... + 18657.

It is an arithmetic number, because the mean of its divisors is an integer number (9558255).

Almost surely, 2^122128008 is an apocalyptic number.

It is an amenable number.

122128008 is an abundant number, since it is smaller than the sum of its proper divisors (183736152).

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

122128008 is a wasteful number, since it uses less digits than its factorization.

122128008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077 (or 9073 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 122128008 is about 11051.1541478707. The cubic root of 122128008 is about 496.1409697296.

Adding to 122128008 its reverse (800821221), we get a palindrome (922949229).

The spelling of 122128008 in words is "one hundred twenty-two million, one hundred twenty-eight thousand, eight".