2121113164 has 12 divisors (see below), whose sum is σ = 3712303224. Its totient is φ = 1060455104.

The previous prime is 2121113131. The next prime is 2121113177. The reversal of 2121113164 is 4613111212.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40884 + ... + 76900.

It is an arithmetic number, because the mean of its divisors is an integer number (309358602).

Almost surely, 2^2121113164 is an apocalyptic number.

It is an amenable number.

2121113164 is a deficient number, since it is larger than the sum of its proper divisors (1591190060).

2121113164 is a wasteful number, since it uses less digits than its factorization.

2121113164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50744 (or 50742 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 2121113164 is about 46055.5443350744. The cubic root of 2121113164 is about 1284.8564620363.

Adding to 2121113164 its reverse (4613111212), we get a palindrome (6734224376).

The spelling of 2121113164 in words is "two billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred sixty-four".