8000110021 has 2 divisors, whose sum is σ = 8000110022. Its totient is φ = 8000110020.

The previous prime is 8000110007. The next prime is 8000110031. The reversal of 8000110021 is 1200110008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6697621921 + 1302488100 = 81839^2 + 36090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8000110021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8000109983 and 8000110010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8000110031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000055010 + 4000055011.

It is an arithmetic number, because the mean of its divisors is an integer number (4000055011).

Almost surely, 2^8000110021 is an apocalyptic number.

It is an amenable number.

8000110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8000110021 is an equidigital number, since it uses as much as digits as its factorization.

8000110021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 8000110021 is about 89443.3341339644. The cubic root of 8000110021 is about 2000.0091683746.

Subtracting from 8000110021 its sum of digits (13), we obtain a palindrome (8000110008).

Adding to 8000110021 its reverse (1200110008), we get a palindrome (9200220029).

The spelling of 8000110021 in words is "eight billion, one hundred ten thousand, twenty-one".