2102330311221 has 12 divisors (see below), whose sum is σ = 3260757217632. Its totient is φ = 1201331606328.

The previous prime is 2102330311199. The next prime is 2102330311247. The reversal of 2102330311221 is 1221130332012.

It is not a de Polignac number, because 2102330311221 - 2¹⁷ = 2102330180149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102330311271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7150783225 + ... + 7150783518.

It is an arithmetic number, because the mean of its divisors is an integer number (271729768136).

Almost surely, 2^{2102330311221} is an apocalyptic number.

2102330311221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2102330311221 is a deficient number, since it is larger than the sum of its proper divisors (1158426906411).

2102330311221 is a wasteful number, since it uses less digits than its factorization.

2102330311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14301566760 (or 14301566753 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2102330311221 its reverse (1221130332012), we get a palindrome (3323460643233).

The spelling of 2102330311221 in words is "two trillion, one hundred two billion, three hundred thirty million, three hundred eleven thousand, two hundred twenty-one".