20112200971 has 2 divisors, whose sum is σ = 20112200972. Its totient is φ = 20112200970.

The previous prime is 20112200957. The next prime is 20112201013. The reversal of 20112200971 is 17900221102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112200971 - 2⁵ = 20112200939 is a prime.

It is not a weakly prime, because it can be changed into another prime (20112200921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056100485 + 10056100486.

It is an arithmetic number, because the mean of its divisors is an integer number (10056100486).

Almost surely, 2^20112200971 is an apocalyptic number.

20112200971 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112200971 is an equidigital number, since it uses as much as digits as its factorization.

20112200971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 20112200971 in words is "twenty billion, one hundred twelve million, two hundred thousand, nine hundred seventy-one".