2110001998997 has 2 divisors, whose sum is σ = 2110001998998. Its totient is φ = 2110001998996.

The previous prime is 2110001998987. The next prime is 2110001999011. The reversal of 2110001998997 is 7998991000112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1769429379601 + 340572619396 = 1330199^2 + 583586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110001998997 - 2⁶ = 2110001998933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110001998987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055000999498 + 1055000999499.

It is an arithmetic number, because the mean of its divisors is an integer number (1055000999499).

Almost surely, 2^{2110001998997} is an apocalyptic number.

It is an amenable number.

2110001998997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110001998997 is an equidigital number, since it uses as much as digits as its factorization.

2110001998997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 56.

The spelling of 2110001998997 in words is "two trillion, one hundred ten billion, one million, nine hundred ninety-eight thousand, nine hundred ninety-seven".