2133112121 has 8 divisors (see below), whose sum is σ = 2566150080. Its totient is φ = 1732151088.

The previous prime is 2133112117. The next prime is 2133112127. The reversal of 2133112121 is 1212113312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2133112121 - 2² = 2133112117 is a prime.

It is a Duffinian number.

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 2133112121.

It is not an unprimeable number, because it can be changed into a prime (2133112127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8019086 + ... + 8019351.

It is an arithmetic number, because the mean of its divisors is an integer number (320768760).

Almost surely, 2^2133112121 is an apocalyptic number.

It is an amenable number.

2133112121 is a deficient number, since it is larger than the sum of its proper divisors (433037959).

2133112121 is a wasteful number, since it uses less digits than its factorization.

2133112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16038463.

The product of its digits is 72, while the sum is 17.

The square root of 2133112121 is about 46185.6267793347. The cubic root of 2133112121 is about 1287.2746824862.

Adding to 2133112121 its reverse (1212113312), we get a palindrome (3345225433).

The spelling of 2133112121 in words is "two billion, one hundred thirty-three million, one hundred twelve thousand, one hundred twenty-one".