2122120129 has 2 divisors, whose sum is σ = 2122120130. Its totient is φ = 2122120128.

The previous prime is 2122120111. The next prime is 2122120141. The reversal of 2122120129 is 9210212212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962047025 + 160073104 = 44295^2 + 12652^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122120129 - 2²⁷ = 1987902401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061060064 + 1061060065.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060065).

Almost surely, 2^2122120129 is an apocalyptic number.

It is an amenable number.

2122120129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122120129 is an equidigital number, since it uses as much as digits as its factorization.

2122120129 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2122120129 is about 46066.4751093461. The cubic root of 2122120129 is about 1285.0597516463.

The spelling of 2122120129 in words is "two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-nine".