20012200099 has 2 divisors, whose sum is σ = 20012200100. Its totient is φ = 20012200098.

The previous prime is 20012200073. The next prime is 20012200139. The reversal of 20012200099 is 99000221002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012200099 - 2⁷ = 20012199971 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012200069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006100049 + 10006100050.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100050).

Almost surely, 2^20012200099 is an apocalyptic number.

20012200099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012200099 is an equidigital number, since it uses as much as digits as its factorization.

20012200099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 20012200099 in words is "twenty billion, twelve million, two hundred thousand, ninety-nine".