2222021121200 has 30 divisors (see below), whose sum is σ = 5338405744644. Its totient is φ = 888808448320.

The previous prime is 2222021121167. The next prime is 2222021121247. The reversal of 2222021121200 is 21211202222.

It is a happy 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, 2777526002 + ... + 2777526801.

Almost surely, 2^{2222021121200} is an apocalyptic number.

2222021121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222021121200 is an abundant number, since it is smaller than the sum of its proper divisors (3116384623444).

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

2222021121200 is a wasteful number, since it uses less digits than its factorization.

2222021121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555052821 (or 5555052810 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2222021121200 its reverse (21211202222), we get a palindrome (2243232323422).

The spelling of 2222021121200 in words is "two trillion, two hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, two hundred".