10221770677 has 2 divisors, whose sum is σ = 10221770678. Its totient is φ = 10221770676.

The previous prime is 10221770617. The next prime is 10221770687. The reversal of 10221770677 is 77607712201.

10221770677 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10008201681 + 213568996 = 100041^2 + 14614^2 .

It is an emirp because it is prime and its reverse (77607712201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10221770677 - 2²⁷ = 10087552949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221770617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110885338 + 5110885339.

It is an arithmetic number, because the mean of its divisors is an integer number (5110885339).

Almost surely, 2^10221770677 is an apocalyptic number.

It is an amenable number.

10221770677 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221770677 is an equidigital number, since it uses as much as digits as its factorization.

10221770677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57624, while the sum is 40.

The spelling of 10221770677 in words is "ten billion, two hundred twenty-one million, seven hundred seventy thousand, six hundred seventy-seven".