2210110021997 has 2 divisors, whose sum is σ = 2210110021998. Its totient is φ = 2210110021996.

The previous prime is 2210110021981. The next prime is 2210110022023. The reversal of 2210110021997 is 7991200110122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2206950907561 + 3159114436 = 1485581^2 + 56206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210110021997 - 2⁴ = 2210110021981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210110021927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105055010998 + 1105055010999.

It is an arithmetic number, because the mean of its divisors is an integer number (1105055010999).

Almost surely, 2^{2210110021997} is an apocalyptic number.

It is an amenable number.

2210110021997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210110021997 is an equidigital number, since it uses as much as digits as its factorization.

2210110021997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 2210110021997 in words is "two trillion, two hundred ten billion, one hundred ten million, twenty-one thousand, nine hundred ninety-seven".