2110122001221 has 16 divisors (see below), whose sum is σ = 3033138716160. Its totient is φ = 1297156639680.

The previous prime is 2110122001199. The next prime is 2110122001231. The reversal of 2110122001221 is 1221002210112.

It is not a de Polignac number, because 2110122001221 - 2¹⁷ = 2110121870149 is a prime.

It is a super-2 number, since 2×2110122001221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2110122001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110122001231) 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, 28712341 + ... + 28785738.

It is an arithmetic number, because the mean of its divisors is an integer number (189571169760).

Almost surely, 2^{2110122001221} is an apocalyptic number.

It is an amenable number.

2110122001221 is a deficient number, since it is larger than the sum of its proper divisors (923016714939).

2110122001221 is a wasteful number, since it uses less digits than its factorization.

2110122001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57499036.

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

Adding to 2110122001221 its reverse (1221002210112), we get a palindrome (3331124211333).

The spelling of 2110122001221 in words is "two trillion, one hundred ten billion, one hundred twenty-two million, one thousand, two hundred twenty-one".