12102200424 has 48 divisors (see below), whose sum is σ = 33907032900. Its totient is φ = 3894960384.

The previous prime is 12102200399. The next prime is 12102200477. The reversal of 12102200424 is 42400220121.

12102200424 is a `hidden beast` number, since 1 + 21 + 0 + 220 + 0 + 424 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12102200100 + 324 = 110010^2 + 18^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12102200397 and 12102200406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2895949 + ... + 2900124.

Almost surely, 2^12102200424 is an apocalyptic number.

It is an amenable number.

12102200424 is an abundant number, since it is smaller than the sum of its proper divisors (21804832476).

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

12102200424 is a wasteful number, since it uses less digits than its factorization.

12102200424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5796114 (or 5796107 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12102200424 its reverse (42400220121), we get a palindrome (54502420545).

The spelling of 12102200424 in words is "twelve billion, one hundred two million, two hundred thousand, four hundred twenty-four".