2310100111221 has 20 divisors (see below), whose sum is σ = 3593275264032. Its totient is φ = 1320057202296.

The previous prime is 2310100111199. The next prime is 2310100111271. The reversal of 2310100111221 is 1221110010132.

It is not a de Polignac number, because 2310100111221 - 2¹⁴ = 2310100094837 is a prime.

It is a super-2 number, since 2×2310100111221² (a number of 26 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 2310100111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2310100111271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 160349601 + ... + 160364006.

Almost surely, 2^{2310100111221} is an apocalyptic number.

2310100111221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2310100111221 is a deficient number, since it is larger than the sum of its proper divisors (1283175152811).

2310100111221 is an frugal number, since it uses more digits than its factorization.

2310100111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320713638 (or 320713617 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2310100111221 its reverse (1221110010132), we get a palindrome (3531210121353).

The spelling of 2310100111221 in words is "two trillion, three hundred ten billion, one hundred million, one hundred eleven thousand, two hundred twenty-one".