11002020221 has 8 divisors (see below), whose sum is σ = 11191024800. Its totient is φ = 10813100080.

The previous prime is 11002020181. The next prime is 11002020223. The reversal of 11002020221 is 12202020011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11002020221 - 2²⁶ = 10934911357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277670 + ... + 314808.

It is an arithmetic number, because the mean of its divisors is an integer number (1398878100).

Almost surely, 2^11002020221 is an apocalyptic number.

It is an amenable number.

11002020221 is a deficient number, since it is larger than the sum of its proper divisors (189004579).

11002020221 is an equidigital number, since it uses as much as digits as its factorization.

11002020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42219.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11002020221 its reverse (12202020011), we get a palindrome (23204040232).

The spelling of 11002020221 in words is "eleven billion, two million, twenty thousand, two hundred twenty-one".