2200121102221 has 16 divisors (see below), whose sum is σ = 2623935135744. Its totient is φ = 1803696588144.

The previous prime is 2200121102203. The next prime is 2200121102237. The reversal of 2200121102221 is 1222011210022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2200121102221 - 2⁹ = 2200121101709 is a prime.

It is a super-2 number, since 2×2200121102221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200121102195 and 2200121102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200121102261) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1793910 + ... + 2760136.

It is an arithmetic number, because the mean of its divisors is an integer number (163995945984).

Almost surely, 2^{2200121102221} is an apocalyptic number.

It is an amenable number.

2200121102221 is a deficient number, since it is larger than the sum of its proper divisors (423814033523).

2200121102221 is a wasteful number, since it uses less digits than its factorization.

2200121102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980400.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2200121102221 its reverse (1222011210022), we get a palindrome (3422132312243).

The spelling of 2200121102221 in words is "two trillion, two hundred billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty-one".