2110220121021 has 16 divisors (see below), whose sum is σ = 2814586015104. Its totient is φ = 1406333928384.

The previous prime is 2110220120977. The next prime is 2110220121041. The reversal of 2110220121021 is 1201210220112.

It is not a de Polignac number, because 2110220121021 - 2¹⁹ = 2110219596733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110220121041) 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, 193539456 + ... + 193550358.

It is an arithmetic number, because the mean of its divisors is an integer number (175911625944).

Almost surely, 2^{2110220121021} is an apocalyptic number.

It is an amenable number.

2110220121021 is a deficient number, since it is larger than the sum of its proper divisors (704365894083).

2110220121021 is a wasteful number, since it uses less digits than its factorization.

2110220121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26980.

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

Adding to 2110220121021 its reverse (1201210220112), we get a palindrome (3311430341133).

Subtracting from 2110220121021 its reverse (1201210220112), we obtain a palindrome (909009900909).

The spelling of 2110220121021 in words is "two trillion, one hundred ten billion, two hundred twenty million, one hundred twenty-one thousand, twenty-one".