2133012121 has 2 divisors, whose sum is σ = 2133012122. Its totient is φ = 2133012120.

The previous prime is 2133012113. The next prime is 2133012127. The reversal of 2133012121 is 1212103312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117012121 + 16000000 = 46011^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133012121 - 2³ = 2133012113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2133012095 and 2133012104.

It is not a weakly prime, because it can be changed into another prime (2133012127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066506060 + 1066506061.

It is an arithmetic number, because the mean of its divisors is an integer number (1066506061).

Almost surely, 2^2133012121 is an apocalyptic number.

It is an amenable number.

2133012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133012121 is an equidigital number, since it uses as much as digits as its factorization.

2133012121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2133012121 is about 46184.5441787618. The cubic root of 2133012121 is about 1287.2545664191.

Adding to 2133012121 its reverse (1212103312), we get a palindrome (3345115433).

The spelling of 2133012121 in words is "two billion, one hundred thirty-three million, twelve thousand, one hundred twenty-one".