11122030021 has 8 divisors (see below), whose sum is σ = 11325287288. Its totient is φ = 10919448000.

The previous prime is 11122030001. The next prime is 11122030061. The reversal of 11122030021 is 12003022111.

It can be written as a sum of positive squares in 4 ways, for example, as 1325979396 + 9796050625 = 36414^2 + 98975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11122030021 - 2²⁷ = 10987812293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122029983 and 11122030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122030001) 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 7 ways as a sum of consecutive naturals, for example, 135510 + ... + 201511.

It is an arithmetic number, because the mean of its divisors is an integer number (1415660911).

Almost surely, 2^11122030021 is an apocalyptic number.

It is an amenable number.

11122030021 is a deficient number, since it is larger than the sum of its proper divisors (203257267).

11122030021 is an equidigital number, since it uses as much as digits as its factorization.

11122030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337623.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11122030021 its reverse (12003022111), we get a palindrome (23125052132).

The spelling of 11122030021 in words is "eleven billion, one hundred twenty-two million, thirty thousand, twenty-one".