20012112210049 has 2 divisors, whose sum is σ = 20012112210050. Its totient is φ = 20012112210048.

The previous prime is 20012112209989. The next prime is 20012112210089. The reversal of 20012112210049 is 94001221121002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14749194459024 + 5262917751025 = 3840468^2 + 2294105^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012112210049 - 2³⁵ = 19977752471681 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012112210089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006056105024 + 10006056105025.

It is an arithmetic number, because the mean of its divisors is an integer number (10006056105025).

Almost surely, 2^{20012112210049} is an apocalyptic number.

It is an amenable number.

20012112210049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012112210049 is an equidigital number, since it uses as much as digits as its factorization.

20012112210049 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 25.

The spelling of 20012112210049 in words is "twenty trillion, twelve billion, one hundred twelve million, two hundred ten thousand, forty-nine".