11241453221 has 2 divisors, whose sum is σ = 11241453222. Its totient is φ = 11241453220.

The previous prime is 11241453203. The next prime is 11241453229. The reversal of 11241453221 is 12235414211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9779232100 + 1462221121 = 98890^2 + 38239^2 .

It is a cyclic number.

It is not a de Polignac number, because 11241453221 - 2¹⁰ = 11241452197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11241453229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5620726610 + 5620726611.

It is an arithmetic number, because the mean of its divisors is an integer number (5620726611).

Almost surely, 2^11241453221 is an apocalyptic number.

It is an amenable number.

11241453221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11241453221 is an equidigital number, since it uses as much as digits as its factorization.

11241453221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

Adding to 11241453221 its reverse (12235414211), we get a palindrome (23476867432).

The spelling of 11241453221 in words is "eleven billion, two hundred forty-one million, four hundred fifty-three thousand, two hundred twenty-one".