12222021222200 has 24 divisors (see below), whose sum is σ = 28416199342080. Its totient is φ = 4888808488800.

The previous prime is 12222021222179. The next prime is 12222021222233. The reversal of 12222021222200 is 222212022221.

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

It is a congruent number.

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, 30555052856 + ... + 30555053255.

It is an arithmetic number, because the mean of its divisors is an integer number (1184008305920).

Almost surely, 2^{12222021222200} is an apocalyptic number.

12222021222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222021222200 is an abundant number, since it is smaller than the sum of its proper divisors (16194178119880).

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

12222021222200 is a wasteful number, since it uses less digits than its factorization.

12222021222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61110106127 (or 61110106118 counting only the distinct ones).

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

Adding to 12222021222200 its reverse (222212022221), we get a palindrome (12444233244421).

The spelling of 12222021222200 in words is "twelve trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred".