11002100222621 has 2 divisors, whose sum is σ = 11002100222622. Its totient is φ = 11002100222620.

The previous prime is 11002100222611. The next prime is 11002100222693. The reversal of 11002100222621 is 12622200120011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10576063351396 + 426036871225 = 3252086^2 + 652715^2 .

It is an emirp because it is prime and its reverse (12622200120011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11002100222621 - 2⁶ = 11002100222557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11002100222593 and 11002100222602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11002100222611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501050111310 + 5501050111311.

It is an arithmetic number, because the mean of its divisors is an integer number (5501050111311).

Almost surely, 2^{11002100222621} is an apocalyptic number.

It is an amenable number.

11002100222621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002100222621 is an equidigital number, since it uses as much as digits as its factorization.

11002100222621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11002100222621 its reverse (12622200120011), we get a palindrome (23624300342632).

The spelling of 11002100222621 in words is "eleven trillion, two billion, one hundred million, two hundred twenty-two thousand, six hundred twenty-one".