20012200139 has 2 divisors, whose sum is σ = 20012200140. Its totient is φ = 20012200138.

The previous prime is 20012200099. The next prime is 20012200183. The reversal of 20012200139 is 93100221002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012200139 - 2²⁸ = 19743764683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20012200139.

It is not a weakly prime, because it can be changed into another prime (20012200339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006100069 + 10006100070.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100070).

Almost surely, 2^20012200139 is an apocalyptic number.

20012200139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012200139 is an equidigital number, since it uses as much as digits as its factorization.

20012200139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 20012200139 in words is "twenty billion, twelve million, two hundred thousand, one hundred thirty-nine".