20012210021113 has 2 divisors, whose sum is σ = 20012210021114. Its totient is φ = 20012210021112.

The previous prime is 20012210021099. The next prime is 20012210021159. The reversal of 20012210021113 is 31112001221002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17533213303824 + 2478996717289 = 4187268^2 + 1574483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012210021113 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012210021513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006105010556 + 10006105010557.

It is an arithmetic number, because the mean of its divisors is an integer number (10006105010557).

Almost surely, 2^{20012210021113} is an apocalyptic number.

It is an amenable number.

20012210021113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012210021113 is an equidigital number, since it uses as much as digits as its factorization.

20012210021113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20012210021113 its reverse (31112001221002), we get a palindrome (51124211242115).

The spelling of 20012210021113 in words is "twenty trillion, twelve billion, two hundred ten million, twenty-one thousand, one hundred thirteen".