210002220997 has 2 divisors, whose sum is σ = 210002220998. Its totient is φ = 210002220996.

The previous prime is 210002220979. The next prime is 210002221007. The reversal of 210002220997 is 799022200012.

Together with previous prime (210002220979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123228379521 + 86773841476 = 351039^2 + 294574^2 .

It is a cyclic number.

It is not a de Polignac number, because 210002220997 - 2²⁷ = 209868003269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210002220907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105001110498 + 105001110499.

It is an arithmetic number, because the mean of its divisors is an integer number (105001110499).

Almost surely, 2^210002220997 is an apocalyptic number.

It is an amenable number.

210002220997 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002220997 is an equidigital number, since it uses as much as digits as its factorization.

210002220997 is an evil number, because the sum of its binary digits is even.

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

The spelling of 210002220997 in words is "two hundred ten billion, two million, two hundred twenty thousand, nine hundred ninety-seven".