11112030221 has 2 divisors, whose sum is σ = 11112030222. Its totient is φ = 11112030220.

The previous prime is 11112030211. The next prime is 11112030271. The reversal of 11112030221 is 12203021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5911456996 + 5200573225 = 76886^2 + 72115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112030221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112030196 and 11112030205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112030211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556015110 + 5556015111.

It is an arithmetic number, because the mean of its divisors is an integer number (5556015111).

Almost surely, 2^11112030221 is an apocalyptic number.

It is an amenable number.

11112030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112030221 is an equidigital number, since it uses as much as digits as its factorization.

11112030221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11112030221 its reverse (12203021111), we get a palindrome (23315051332).

The spelling of 11112030221 in words is "eleven billion, one hundred twelve million, thirty thousand, two hundred twenty-one".