2200120021100 has 18 divisors (see below), whose sum is σ = 4774260446004. Its totient is φ = 880048008400.

The previous prime is 2200120021087. The next prime is 2200120021103. The reversal of 2200120021100 is 11200210022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2200120021103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11000600006 + ... + 11000600205.

Almost surely, 2^{2200120021100} is an apocalyptic number.

2200120021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2200120021100 is an abundant number, since it is smaller than the sum of its proper divisors (2574140424904).

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

2200120021100 is a wasteful number, since it uses less digits than its factorization.

2200120021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22001200225 (or 22001200218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2200120021100 its reverse (11200210022), we get a palindrome (2211320231122).

The spelling of 2200120021100 in words is "two trillion, two hundred billion, one hundred twenty million, twenty-one thousand, one hundred".