20200220002129 has 2 divisors, whose sum is σ = 20200220002130. Its totient is φ = 20200220002128.

The previous prime is 20200220002063. The next prime is 20200220002147. The reversal of 20200220002129 is 92120002200202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14555903648400 + 5644316353729 = 3815220^2 + 2375777^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200220002129 - 2⁹ = 20200220001617 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200220002229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100110001064 + 10100110001065.

It is an arithmetic number, because the mean of its divisors is an integer number (10100110001065).

Almost surely, 2^{20200220002129} is an apocalyptic number.

It is an amenable number.

20200220002129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200220002129 is an equidigital number, since it uses as much as digits as its factorization.

20200220002129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 20200220002129 in words is "twenty trillion, two hundred billion, two hundred twenty million, two thousand, one hundred twenty-nine".