11230113221 has 2 divisors, whose sum is σ = 11230113222. Its totient is φ = 11230113220.

The previous prime is 11230113199. The next prime is 11230113269. The reversal of 11230113221 is 12231103211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10854722596 + 375390625 = 104186^2 + 19375^2 .

It is a cyclic number.

It is not a de Polignac number, because 11230113221 - 2¹⁴ = 11230096837 is a prime.

It is a super-2 number, since 2×11230113221² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11230113221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11230113281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615056610 + 5615056611.

It is an arithmetic number, because the mean of its divisors is an integer number (5615056611).

Almost surely, 2^11230113221 is an apocalyptic number.

It is an amenable number.

11230113221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11230113221 is an equidigital number, since it uses as much as digits as its factorization.

11230113221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11230113221 its reverse (12231103211), we get a palindrome (23461216432).

The spelling of 11230113221 in words is "eleven billion, two hundred thirty million, one hundred thirteen thousand, two hundred twenty-one".