11221200110021 has 16 divisors (see below), whose sum is σ = 12317304424320. Its totient is φ = 10137955638720.

The previous prime is 11221200109997. The next prime is 11221200110027. The reversal of 11221200110021 is 12001100212211.

It is a cyclic number.

It is not a de Polignac number, because 11221200110021 - 2²⁶ = 11221133001157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221200109978 and 11221200110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221200110027) 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 15 ways as a sum of consecutive naturals, for example, 3691970 + ... + 6006083.

It is an arithmetic number, because the mean of its divisors is an integer number (769831526520).

Almost surely, 2^{11221200110021} is an apocalyptic number.

11221200110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11221200110021 is a deficient number, since it is larger than the sum of its proper divisors (1096104314299).

11221200110021 is a wasteful number, since it uses less digits than its factorization.

11221200110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698716.

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

Adding to 11221200110021 its reverse (12001100212211), we get a palindrome (23222300322232).

The spelling of 11221200110021 in words is "eleven trillion, two hundred twenty-one billion, two hundred million, one hundred ten thousand, twenty-one".