1010221101997 has 2 divisors, whose sum is σ = 1010221101998. Its totient is φ = 1010221101996.

The previous prime is 1010221101983. The next prime is 1010221102001. The reversal of 1010221101997 is 7991011220101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672746084521 + 337475017476 = 820211^2 + 580926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010221101997 is a prime.

It is a super-3 number, since 3×1010221101997³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010221101497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505110550998 + 505110550999.

It is an arithmetic number, because the mean of its divisors is an integer number (505110550999).

Almost surely, 2^{1010221101997} is an apocalyptic number.

It is an amenable number.

1010221101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010221101997 is an equidigital number, since it uses as much as digits as its factorization.

1010221101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 1010221101997 in words is "one trillion, ten billion, two hundred twenty-one million, one hundred one thousand, nine hundred ninety-seven".