122404100 has 72 divisors (see below), whose sum is σ = 326937408. Its totient is φ = 38736000.

The previous prime is 122404043. The next prime is 122404123. The reversal of 122404100 is 1404221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2375 + ... + 15825.

Almost surely, 2^122404100 is an apocalyptic number.

122404100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122404100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163468704).

122404100 is an abundant number, since it is smaller than the sum of its proper divisors (204533308).

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

122404100 is a wasteful number, since it uses less digits than its factorization.

122404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485 (or 13478 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 122404100 is about 11063.6386419659. The cubic root of 122404100 is about 496.5145598704.

Adding to 122404100 its reverse (1404221), we get a palindrome (123808321).

The spelling of 122404100 in words is "one hundred twenty-two million, four hundred four thousand, one hundred".