11111002102021 has 8 divisors (see below), whose sum is σ = 11347467621120. Its totient is φ = 10874539133808.

The previous prime is 11111002102007. The next prime is 11111002102043. The reversal of 11111002102021 is 12020120011111.

It is a happy number.

11111002102021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111002102021 is a prime.

It is a super-2 number, since 2×11111002102021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111002101992 and 11111002102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111002102001) 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, 10053555 + ... + 11103871.

It is an arithmetic number, because the mean of its divisors is an integer number (1418433452640).

Almost surely, 2^{11111002102021} is an apocalyptic number.

It is an amenable number.

11111002102021 is a deficient number, since it is larger than the sum of its proper divisors (236465519099).

11111002102021 is a wasteful number, since it uses less digits than its factorization.

11111002102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275443.

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

Adding to 11111002102021 its reverse (12020120011111), we get a palindrome (23131122113132).

The spelling of 11111002102021 in words is "eleven trillion, one hundred eleven billion, two million, one hundred two thousand, twenty-one".