11122421244021 has 6 divisors (see below), whose sum is σ = 16065719574710. Its totient is φ = 7414947496008.

The previous prime is 11122421243929. The next prime is 11122421244023. The reversal of 11122421244021 is 12044212422111.

11122421244021 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 2 + 4 + 212 + 440 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8303699244996 + 2818721999025 = 2881614^2 + 1678905^2 .

It is not a de Polignac number, because 11122421244021 - 2⁷ = 11122421243893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122421244023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617912291326 + ... + 617912291343.

Almost surely, 2^{11122421244021} is an apocalyptic number.

It is an amenable number.

11122421244021 is a deficient number, since it is larger than the sum of its proper divisors (4943298330689).

11122421244021 is a wasteful number, since it uses less digits than its factorization.

11122421244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235824582675 (or 1235824582672 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 11122421244021 its reverse (12044212422111), we get a palindrome (23166633666132).

The spelling of 11122421244021 in words is "eleven trillion, one hundred twenty-two billion, four hundred twenty-one million, two hundred forty-four thousand, twenty-one".