11122011001021 has 4 divisors (see below), whose sum is σ = 11122153102944. Its totient is φ = 11121868899100.

The previous prime is 11122011000953. The next prime is 11122011001043. The reversal of 11122011001021 is 12010011022111.

It is a happy number.

11122011001021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11122011001021 - 2²¹ = 11122008903869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122011000992 and 11122011001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122011001421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70933495 + ... + 71090116.

It is an arithmetic number, because the mean of its divisors is an integer number (2780538275736).

Almost surely, 2^{11122011001021} is an apocalyptic number.

It is an amenable number.

11122011001021 is a deficient number, since it is larger than the sum of its proper divisors (142101923).

11122011001021 is an equidigital number, since it uses as much as digits as its factorization.

11122011001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142101922.

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

Adding to 11122011001021 its reverse (12010011022111), we get a palindrome (23132022023132).

The spelling of 11122011001021 in words is "eleven trillion, one hundred twenty-two billion, eleven million, one thousand, twenty-one".