12221011012200 has 48 divisors (see below), whose sum is σ = 37885134139680. Its totient is φ = 3258936269760.

The previous prime is 12221011012193. The next prime is 12221011012207. The reversal of 12221011012200 is 221011012221.

It is an interprime number because it is at equal distance from previous prime (12221011012193) and next prime (12221011012207).

It is a super-2 number, since 2×12221011012200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12221011012200.

It is not an unprimeable number, because it can be changed into a prime (12221011012207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10184175244 + ... + 10184176443.

It is an arithmetic number, because the mean of its divisors is an integer number (789273627910).

Almost surely, 2^{12221011012200} is an apocalyptic number.

12221011012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221011012200 is an abundant number, since it is smaller than the sum of its proper divisors (25664123127480).

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

12221011012200 is a wasteful number, since it uses less digits than its factorization.

12221011012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20368351706 (or 20368351697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221011012200 its reverse (221011012221), we get a palindrome (12442022024421).

The spelling of 12221011012200 in words is "twelve trillion, two hundred twenty-one billion, eleven million, twelve thousand, two hundred".