11002211021121 has 4 divisors (see below), whose sum is σ = 14669614694832. Its totient is φ = 7334807347412.

The previous prime is 11002211021063. The next prime is 11002211021129. The reversal of 11002211021121 is 12112011220011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11002211021121 - 2¹¹ = 11002211019073 is a prime.

It is a super-3 number, since 3×11002211021121³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11002211021121.

It is not an unprimeable number, because it can be changed into a prime (11002211021129) 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, 1833701836851 + ... + 1833701836856.

It is an arithmetic number, because the mean of its divisors is an integer number (3667403673708).

Almost surely, 2^{11002211021121} is an apocalyptic number.

It is an amenable number.

11002211021121 is a deficient number, since it is larger than the sum of its proper divisors (3667403673711).

11002211021121 is an equidigital number, since it uses as much as digits as its factorization.

11002211021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667403673710.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11002211021121 its reverse (12112011220011), we get a palindrome (23114222241132).

The spelling of 11002211021121 in words is "eleven trillion, two billion, two hundred eleven million, twenty-one thousand, one hundred twenty-one".