10202220997 has 2 divisors, whose sum is σ = 10202220998. Its totient is φ = 10202220996.

The previous prime is 10202220991. The next prime is 10202221013. The reversal of 10202220997 is 79902220201.

10202220997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6632636481 + 3569584516 = 81441^2 + 59746^2 .

It is an emirp because it is prime and its reverse (79902220201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10202220997 - 2³¹ = 8054737349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10202220991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101110498 + 5101110499.

It is an arithmetic number, because the mean of its divisors is an integer number (5101110499).

Almost surely, 2^10202220997 is an apocalyptic number.

It is an amenable number.

10202220997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202220997 is an equidigital number, since it uses as much as digits as its factorization.

10202220997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 10202220997 in words is "ten billion, two hundred two million, two hundred twenty thousand, nine hundred ninety-seven".