12220121112200 has 24 divisors (see below), whose sum is σ = 28411781586330. Its totient is φ = 4888048444800.

The previous prime is 12220121112187. The next prime is 12220121112229. The reversal of 12220121112200 is 221112102221.

It can be written as a sum of positive squares in 3 ways, for example, as 11617749544324 + 602371567876 = 3408482^2 + 776126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30550302581 + ... + 30550302980.

Almost surely, 2^{12220121112200} is an apocalyptic number.

12220121112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220121112200 is an abundant number, since it is smaller than the sum of its proper divisors (16191660474130).

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

12220121112200 is a wasteful number, since it uses less digits than its factorization.

12220121112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61100605577 (or 61100605568 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12220121112200 its reverse (221112102221), we get a palindrome (12441233214421).

The spelling of 12220121112200 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twelve thousand, two hundred".