11002120211021 has 4 divisors (see below), whose sum is σ = 11013497792352. Its totient is φ = 10990742629692.

The previous prime is 11002120211009. The next prime is 11002120211051. The reversal of 11002120211021 is 12011202120011.

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 11002120211021 - 2⁴² = 6604073699917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002120210987 and 11002120211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002120211051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5688789215 + ... + 5688791148.

It is an arithmetic number, because the mean of its divisors is an integer number (2753374448088).

Almost surely, 2^{11002120211021} is an apocalyptic number.

It is an amenable number.

11002120211021 is a deficient number, since it is larger than the sum of its proper divisors (11377581331).

11002120211021 is an equidigital number, since it uses as much as digits as its factorization.

11002120211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11377581330.

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

Adding to 11002120211021 its reverse (12011202120011), we get a palindrome (23013322331032).

The spelling of 11002120211021 in words is "eleven trillion, two billion, one hundred twenty million, two hundred eleven thousand, twenty-one".