2110213231221 has 16 divisors (see below), whose sum is σ = 2889790352064. Its totient is φ = 1368725860224.

The previous prime is 2110213231219. The next prime is 2110213231229. The reversal of 2110213231221 is 1221323120112.

It is not a de Polignac number, because 2110213231221 - 2¹ = 2110213231219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110213231229) 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, 2143201 + ... + 2968793.

It is an arithmetic number, because the mean of its divisors is an integer number (180611897004).

Almost surely, 2^{2110213231221} is an apocalyptic number.

It is an amenable number.

2110213231221 is a deficient number, since it is larger than the sum of its proper divisors (779577120843).

2110213231221 is a wasteful number, since it uses less digits than its factorization.

2110213231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848660.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2110213231221 its reverse (1221323120112), we get a palindrome (3331536351333).

The spelling of 2110213231221 in words is "two trillion, one hundred ten billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred twenty-one".