2222200121100 has 36 divisors (see below), whose sum is σ = 6429565684584. Its totient is φ = 592586698880.

The previous prime is 2222200121083. The next prime is 2222200121131. The reversal of 2222200121100 is 11210022222.

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 2222200121100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3703666569 + ... + 3703667168.

It is an arithmetic number, because the mean of its divisors is an integer number (178599046794).

Almost surely, 2^{2222200121100} is an apocalyptic number.

2222200121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222200121100 is an abundant number, since it is smaller than the sum of its proper divisors (4207365563484).

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

2222200121100 is a wasteful number, since it uses less digits than its factorization.

2222200121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407333754 (or 7407333747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2222200121100 its reverse (11210022222), we get a palindrome (2233410143322).

The spelling of 2222200121100 in words is "two trillion, two hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, one hundred".