680221122041 has 2 divisors, whose sum is σ = 680221122042. Its totient is φ = 680221122040.

The previous prime is 680221121891. The next prime is 680221122067. The reversal of 680221122041 is 140221122086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490840360000 + 189380762041 = 700600^2 + 435179^2 .

It is a cyclic number.

It is not a de Polignac number, because 680221122041 - 2²² = 680216927737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680221121995 and 680221122013.

It is not a weakly prime, because it can be changed into another prime (680221122341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340110561020 + 340110561021.

It is an arithmetic number, because the mean of its divisors is an integer number (340110561021).

Almost surely, 2^680221122041 is an apocalyptic number.

It is an amenable number.

680221122041 is a deficient number, since it is larger than the sum of its proper divisors (1).

680221122041 is an equidigital number, since it uses as much as digits as its factorization.

680221122041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 680221122041 in words is "six hundred eighty billion, two hundred twenty-one million, one hundred twenty-two thousand, forty-one".