12221220200 has 96 divisors (see below), whose sum is σ = 33885509760. Its totient is φ = 4007942400.

The previous prime is 12221220173. The next prime is 12221220229. The reversal of 12221220200 is 202212221.

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, 157571 + ... + 221970.

It is an arithmetic number, because the mean of its divisors is an integer number (352974060).

Almost surely, 2^12221220200 is an apocalyptic number.

12221220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221220200 is an abundant number, since it is smaller than the sum of its proper divisors (21664289560).

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

12221220200 is a wasteful number, since it uses less digits than its factorization.

12221220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379587 (or 379578 counting only the distinct ones).

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

Adding to 12221220200 its reverse (202212221), we get a palindrome (12423432421).

The spelling of 12221220200 in words is "twelve billion, two hundred twenty-one million, two hundred twenty thousand, two hundred".