11002021211021 has 4 divisors (see below), whose sum is σ = 11002233252000. Its totient is φ = 11001809170044.

The previous prime is 11002021210987. The next prime is 11002021211113. The reversal of 11002021211021 is 12011212020011.

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 a de Polignac number, because none of the positive numbers 2^k-11002021211021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002021210987 and 11002021211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002021211821) 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, 105942641 + ... + 106046438.

It is an arithmetic number, because the mean of its divisors is an integer number (2750558313000).

Almost surely, 2^{11002021211021} is an apocalyptic number.

It is an amenable number.

11002021211021 is a deficient number, since it is larger than the sum of its proper divisors (212040979).

11002021211021 is an equidigital number, since it uses as much as digits as its factorization.

11002021211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212040978.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11002021211021 its reverse (12011212020011), we get a palindrome (23013233231032).

The spelling of 11002021211021 in words is "eleven trillion, two billion, twenty-one million, two hundred eleven thousand, twenty-one".