2100332121 has 24 divisors (see below), whose sum is σ = 2895268320. Its totient is φ = 1354292352.

The previous prime is 2100332081. The next prime is 2100332131. The reversal of 2100332121 is 1212330012.

It is not a de Polignac number, because 2100332121 - 2⁷ = 2100331993 is a prime.

It is a super-2 number, since 2×2100332121² = 8822790037008717282, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100332121.

It is not an unprimeable number, because it can be changed into a prime (2100332131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 733725 + ... + 736581.

It is an arithmetic number, because the mean of its divisors is an integer number (120636180).

Almost surely, 2^2100332121 is an apocalyptic number.

It is an amenable number.

2100332121 is a deficient number, since it is larger than the sum of its proper divisors (794936199).

2100332121 is a wasteful number, since it uses less digits than its factorization.

2100332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2100332121 is about 45829.3805434898. The cubic root of 2100332121 is about 1280.6466705135.

Adding to 2100332121 its reverse (1212330012), we get a palindrome (3312662133).

The spelling of 2100332121 in words is "two billion, one hundred million, three hundred thirty-two thousand, one hundred twenty-one".