11102101210021 has 8 divisors (see below), whose sum is σ = 11137792664664. Its totient is φ = 11066411166720.

The previous prime is 11102101209977. The next prime is 11102101210043. The reversal of 11102101210021 is 12001210120111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1100220579396 + 10001880630625 = 1048914^2 + 3162575^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11102101210021 - 2¹⁷ = 11102101078949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102101209983 and 11102101210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102101210721) 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 7 ways as a sum of consecutive naturals, for example, 16732131 + ... + 17382991.

It is an arithmetic number, because the mean of its divisors is an integer number (1392224083083).

Almost surely, 2^{11102101210021} is an apocalyptic number.

It is an amenable number.

11102101210021 is a deficient number, since it is larger than the sum of its proper divisors (35691454643).

11102101210021 is an equidigital number, since it uses as much as digits as its factorization.

11102101210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705671.

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

Adding to 11102101210021 its reverse (12001210120111), we get a palindrome (23103311330132).

The spelling of 11102101210021 in words is "eleven trillion, one hundred two billion, one hundred one million, two hundred ten thousand, twenty-one".