1021210119997 has 2 divisors, whose sum is σ = 1021210119998. Its totient is φ = 1021210119996.

The previous prime is 1021210119967. The next prime is 1021210120031. The reversal of 1021210119997 is 7999110121201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 969159522681 + 52050597316 = 984459^2 + 228146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021210119997 - 2⁷ = 1021210119869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021210119967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510605059998 + 510605059999.

It is an arithmetic number, because the mean of its divisors is an integer number (510605059999).

Almost surely, 2^{1021210119997} is an apocalyptic number.

It is an amenable number.

1021210119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021210119997 is an equidigital number, since it uses as much as digits as its factorization.

1021210119997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 1021210119997 in words is "one trillion, twenty-one billion, two hundred ten million, one hundred nineteen thousand, nine hundred ninety-seven".