2121233051 has 32 divisors (see below), whose sum is σ = 2544027648. Its totient is φ = 1730937600.

The previous prime is 2121233041. The next prime is 2121233057. The reversal of 2121233051 is 1503321212.

It is a de Polignac number, because none of the positive numbers 2^k-2121233051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121233057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2854586 + ... + 2855328.

It is an arithmetic number, because the mean of its divisors is an integer number (79500864).

Almost surely, 2^2121233051 is an apocalyptic number.

2121233051 is a deficient number, since it is larger than the sum of its proper divisors (422794597).

2121233051 is a wasteful number, since it uses less digits than its factorization.

2121233051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2121233051 is about 46056.8458646486. The cubic root of 2121233051 is about 1284.8806686160.

Adding to 2121233051 its reverse (1503321212), we get a palindrome (3624554263).

The spelling of 2121233051 in words is "two billion, one hundred twenty-one million, two hundred thirty-three thousand, fifty-one".