11000021200021 has 8 divisors (see below), whose sum is σ = 12571473863744. Its totient is φ = 9428573802240.

The previous prime is 11000021199961. The next prime is 11000021200033. The reversal of 11000021200021 is 12000212000011.

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-11000021200021 is a prime.

It is a super-2 number, since 2×11000021200021² (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 = 11000021199980 and 11000021200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000021200321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5541301 + ... + 7259893.

It is an arithmetic number, because the mean of its divisors is an integer number (1571434232968).

Almost surely, 2^{11000021200021} is an apocalyptic number.

It is an amenable number.

11000021200021 is a deficient number, since it is larger than the sum of its proper divisors (1571452663723).

11000021200021 is an equidigital number, since it uses as much as digits as its factorization.

11000021200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632971.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11000021200021 its reverse (12000212000011), we get a palindrome (23000233200032).

The spelling of 11000021200021 in words is "eleven trillion, twenty-one million, two hundred thousand, twenty-one".