2002021999097 has 2 divisors, whose sum is σ = 2002021999098. Its totient is φ = 2002021999096.

The previous prime is 2002021999073. The next prime is 2002021999151. The reversal of 2002021999097 is 7909991202002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1518585471481 + 483436527616 = 1232309^2 + 695296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002021999097 - 2³⁸ = 1727144092153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002021999037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001010999548 + 1001010999549.

It is an arithmetic number, because the mean of its divisors is an integer number (1001010999549).

Almost surely, 2^{2002021999097} is an apocalyptic number.

It is an amenable number.

2002021999097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002021999097 is an equidigital number, since it uses as much as digits as its factorization.

2002021999097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 50.

The spelling of 2002021999097 in words is "two trillion, two billion, twenty-one million, nine hundred ninety-nine thousand, ninety-seven".