12122022220200 has 144 divisors (see below), whose sum is σ = 43104485003580. Its totient is φ = 3042389882880.

The previous prime is 12122022220171. The next prime is 12122022220219. The reversal of 12122022220200 is 202222022121.

12122022220200 is a `hidden beast` number, since 1 + 2 + 1 + 220 + 22 + 220 + 200 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 6919982703396 + 5202039516804 = 2630586^2 + 2280798^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198041659 + ... + 198102858.

Almost surely, 2^{12122022220200} is an apocalyptic number.

12122022220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122022220200 is an abundant number, since it is smaller than the sum of its proper divisors (30982462783380).

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

12122022220200 is a wasteful number, since it uses less digits than its factorization.

12122022220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396144556 (or 396144544 counting only the distinct ones).

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

Adding to 12122022220200 its reverse (202222022121), we get a palindrome (12324244242321).

The spelling of 12122022220200 in words is "twelve trillion, one hundred twenty-two billion, twenty-two million, two hundred twenty thousand, two hundred".