12220221222200 has 96 divisors (see below), whose sum is σ = 28459629203760. Its totient is φ = 4879903257600.

The previous prime is 12220221222137. The next prime is 12220221222203. The reversal of 12220221222200 is 222212202221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220221222203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317710970 + ... + 317749430.

Almost surely, 2^{12220221222200} is an apocalyptic number.

12220221222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220221222200 is an abundant number, since it is smaller than the sum of its proper divisors (16239407981560).

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

12220221222200 is a wasteful number, since it uses less digits than its factorization.

12220221222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41097 (or 41088 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12220221222200 its reverse (222212202221), we get a palindrome (12442433424421).

The spelling of 12220221222200 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred".