12029022121 has 2 divisors, whose sum is σ = 12029022122. Its totient is φ = 12029022120.

The previous prime is 12029022077. The next prime is 12029022133. The reversal of 12029022121 is 12122092021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11393427600 + 635594521 = 106740^2 + 25211^2 .

It is a cyclic number.

It is not a de Polignac number, because 12029022121 - 2²⁵ = 11995467689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12029022092 and 12029022101.

It is not a weakly prime, because it can be changed into another prime (12029022521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6014511060 + 6014511061.

It is an arithmetic number, because the mean of its divisors is an integer number (6014511061).

Almost surely, 2^12029022121 is an apocalyptic number.

It is an amenable number.

12029022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12029022121 is an equidigital number, since it uses as much as digits as its factorization.

12029022121 is an evil number, because the sum of its binary digits is even.

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

The spelling of 12029022121 in words is "twelve billion, twenty-nine million, twenty-two thousand, one hundred twenty-one".