11002100221997 has 2 divisors, whose sum is σ = 11002100221998. Its totient is φ = 11002100221996.

The previous prime is 11002100221921. The next prime is 11002100222107. The reversal of 11002100221997 is 79912200120011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6251505090601 + 4750595131396 = 2500301^2 + 2179586^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002100221997 - 2³⁰ = 11001026480173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11002100221897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501050110998 + 5501050110999.

It is an arithmetic number, because the mean of its divisors is an integer number (5501050110999).

Almost surely, 2^{11002100221997} is an apocalyptic number.

It is an amenable number.

11002100221997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002100221997 is an equidigital number, since it uses as much as digits as its factorization.

11002100221997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 11002100221997 in words is "eleven trillion, two billion, one hundred million, two hundred twenty-one thousand, nine hundred ninety-seven".