220020110971 has 2 divisors, whose sum is σ = 220020110972. Its totient is φ = 220020110970.

The previous prime is 220020110927. The next prime is 220020111037. The reversal of 220020110971 is 179011020022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220020110971 is a prime.

It is not a weakly prime, because it can be changed into another prime (220020110911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010055485 + 110010055486.

It is an arithmetic number, because the mean of its divisors is an integer number (110010055486).

Almost surely, 2^220020110971 is an apocalyptic number.

220020110971 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020110971 is an equidigital number, since it uses as much as digits as its factorization.

220020110971 is an evil number, because the sum of its binary digits is even.

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

Adding to 220020110971 its reverse (179011020022), we get a palindrome (399031130993).

The spelling of 220020110971 in words is "two hundred twenty billion, twenty million, one hundred ten thousand, nine hundred seventy-one".