11112322111021 has 4 divisors (see below), whose sum is σ = 11123626610592. Its totient is φ = 11101017611452.

The previous prime is 11112322111013. The next prime is 11112322111039. The reversal of 11112322111021 is 12011122321111.

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 11112322111021 - 2³ = 11112322111013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112322111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112322111081) 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, 5652248311 + ... + 5652250276.

It is an arithmetic number, because the mean of its divisors is an integer number (2780906652648).

Almost surely, 2^{11112322111021} is an apocalyptic number.

It is an amenable number.

11112322111021 is a deficient number, since it is larger than the sum of its proper divisors (11304499571).

11112322111021 is an equidigital number, since it uses as much as digits as its factorization.

11112322111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11304499570.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 11112322111021 its reverse (12011122321111), we get a palindrome (23123444432132).

The spelling of 11112322111021 in words is "eleven trillion, one hundred twelve billion, three hundred twenty-two million, one hundred eleven thousand, twenty-one".