2200120891221 has 16 divisors (see below), whose sum is σ = 3207399736320. Its totient is φ = 1330396644720.

The previous prime is 2200120891207. The next prime is 2200120891229. The reversal of 2200120891221 is 1221980210022.

It is not a de Polignac number, because 2200120891221 - 2²⁵ = 2200087336789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200120891229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75234061 + ... + 75263298.

It is an arithmetic number, because the mean of its divisors is an integer number (200462483520).

Almost surely, 2^{2200120891221} is an apocalyptic number.

It is an amenable number.

2200120891221 is a deficient number, since it is larger than the sum of its proper divisors (1007278845099).

2200120891221 is a wasteful number, since it uses less digits than its factorization.

2200120891221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150497816.

The product of its (nonzero) digits is 2304, while the sum is 30.

It can be divided in two parts, 2200120 and 891221, that added together give a triangular number (3091341 = T₂₄₈₆).

The spelling of 2200120891221 in words is "two trillion, two hundred billion, one hundred twenty million, eight hundred ninety-one thousand, two hundred twenty-one".