2200121211021 has 16 divisors (see below), whose sum is σ = 3042028888704. Its totient is φ = 1413250248384.

The previous prime is 2200121211007. The next prime is 2200121211023. The reversal of 2200121211021 is 1201121210022.

It is not a de Polignac number, because 2200121211021 - 2¹⁸ = 2200120948877 is a prime.

It is a super-2 number, since 2×2200121211021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200121211023) 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, 96206586 + ... + 96229451.

It is an arithmetic number, because the mean of its divisors is an integer number (190126805544).

Almost surely, 2^{2200121211021} is an apocalyptic number.

It is an amenable number.

2200121211021 is a deficient number, since it is larger than the sum of its proper divisors (841907677683).

2200121211021 is a wasteful number, since it uses less digits than its factorization.

2200121211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192436180.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2200121211021 its reverse (1201121210022), we get a palindrome (3401242421043).

Subtracting from 2200121211021 its reverse (1201121210022), we obtain a palindrome (999000000999).

It can be divided in two parts, 2200121 and 211021, that added together give a palindrome (2411142).

The spelling of 2200121211021 in words is "two trillion, two hundred billion, one hundred twenty-one million, two hundred eleven thousand, twenty-one".