20012210021099 has 2 divisors, whose sum is σ = 20012210021100. Its totient is φ = 20012210021098.

The previous prime is 20012210021003. The next prime is 20012210021113. The reversal of 20012210021099 is 99012001221002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012210021099 - 2⁸ = 20012210020843 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012210021399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006105010549 + 10006105010550.

It is an arithmetic number, because the mean of its divisors is an integer number (10006105010550).

Almost surely, 2^{20012210021099} is an apocalyptic number.

20012210021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012210021099 is an equidigital number, since it uses as much as digits as its factorization.

20012210021099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 20012210021099 in words is "twenty trillion, twelve billion, two hundred ten million, twenty-one thousand, ninety-nine".