11002111201021 has 4 divisors (see below), whose sum is σ = 11002223144700. Its totient is φ = 11001999257344.

The previous prime is 11002111201009. The next prime is 11002111201043. The reversal of 11002111201021 is 12010211120011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10899704160900 + 102407040121 = 3301470^2 + 320011^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002111201021 - 2⁵ = 11002111200989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002111200992 and 11002111201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002111201051) 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, 55824286 + ... + 56021023.

It is an arithmetic number, because the mean of its divisors is an integer number (2750555786175).

Almost surely, 2^{11002111201021} is an apocalyptic number.

It is an amenable number.

11002111201021 is a deficient number, since it is larger than the sum of its proper divisors (111943679).

11002111201021 is an equidigital number, since it uses as much as digits as its factorization.

11002111201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111943678.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11002111201021 its reverse (12010211120011), we get a palindrome (23012322321032).

The spelling of 11002111201021 in words is "eleven trillion, two billion, one hundred eleven million, two hundred one thousand, twenty-one".