20200122011129 has 2 divisors, whose sum is σ = 20200122011130. Its totient is φ = 20200122011128.

The previous prime is 20200122011071. The next prime is 20200122011141. The reversal of 20200122011129 is 92111022100202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20191542250000 + 8579761129 = 4493500^2 + 92627^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200122011129 - 2²⁸ = 20199853575673 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200122011149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100061005564 + 10100061005565.

It is an arithmetic number, because the mean of its divisors is an integer number (10100061005565).

Almost surely, 2^{20200122011129} is an apocalyptic number.

It is an amenable number.

20200122011129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200122011129 is an equidigital number, since it uses as much as digits as its factorization.

20200122011129 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 23.

The spelling of 20200122011129 in words is "twenty trillion, two hundred billion, one hundred twenty-two million, eleven thousand, one hundred twenty-nine".