11741235221 has 2 divisors, whose sum is σ = 11741235222. Its totient is φ = 11741235220.

The previous prime is 11741235203. The next prime is 11741235227. The reversal of 11741235221 is 12253214711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10059087025 + 1682148196 = 100295^2 + 41014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11741235221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11741235227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5870617610 + 5870617611.

It is an arithmetic number, because the mean of its divisors is an integer number (5870617611).

Almost surely, 2^11741235221 is an apocalyptic number.

It is an amenable number.

11741235221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11741235221 is an equidigital number, since it uses as much as digits as its factorization.

11741235221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

Adding to 11741235221 its reverse (12253214711), we get a palindrome (23994449932).

The spelling of 11741235221 in words is "eleven billion, seven hundred forty-one million, two hundred thirty-five thousand, two hundred twenty-one".