11002132202221 has 4 divisors (see below), whose sum is σ = 11002140650844. Its totient is φ = 11002123753600.

The previous prime is 11002132202177. The next prime is 11002132202291. The reversal of 11002132202221 is 12220223120011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10063392121225 + 938740080996 = 3172285^2 + 968886^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002132202221 - 2⁷ = 11002132202093 is a prime.

It is a super-2 number, since 2×11002132202221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002132202291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811620 + ... + 5028541.

It is an arithmetic number, because the mean of its divisors is an integer number (2750535162711).

Almost surely, 2^{11002132202221} is an apocalyptic number.

It is an amenable number.

11002132202221 is a deficient number, since it is larger than the sum of its proper divisors (8448623).

11002132202221 is an equidigital number, since it uses as much as digits as its factorization.

11002132202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448622.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11002132202221 its reverse (12220223120011), we get a palindrome (23222355322232).

The spelling of 11002132202221 in words is "eleven trillion, two billion, one hundred thirty-two million, two hundred two thousand, two hundred twenty-one".