2002210021997 has 2 divisors, whose sum is σ = 2002210021998. Its totient is φ = 2002210021996.

The previous prime is 2002210021961. The next prime is 2002210022011. The reversal of 2002210021997 is 7991200122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1571761182601 + 430448839396 = 1253699^2 + 656086^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002210021997 - 2⁸ = 2002210021741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002210021397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001105010998 + 1001105010999.

It is an arithmetic number, because the mean of its divisors is an integer number (1001105010999).

Almost surely, 2^{2002210021997} is an apocalyptic number.

It is an amenable number.

2002210021997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002210021997 is an equidigital number, since it uses as much as digits as its factorization.

2002210021997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

Adding to 2002210021997 its reverse (7991200122002), we get a palindrome (9993410143999).

The spelling of 2002210021997 in words is "two trillion, two billion, two hundred ten million, twenty-one thousand, nine hundred ninety-seven".