11348221 has 2 divisors, whose sum is σ = 11348222. Its totient is φ = 11348220.

The previous prime is 11348219. The next prime is 11348243. The reversal of 11348221 is 12284311.

It is a happy number.

It is an a-pointer prime, because the next prime (11348243) can be obtained adding 11348221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 1651225 = 3114^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 11348221 - 2¹ = 11348219 is a prime.

Together with 11348219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11348192 and 11348201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11348261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5674110 + 5674111.

It is an arithmetic number, because the mean of its divisors is an integer number (5674111).

Almost surely, 2^11348221 is an apocalyptic number.

It is an amenable number.

11348221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11348221 is an equidigital number, since it uses as much as digits as its factorization.

11348221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

The square root of 11348221 is about 3368.7120684321. The cubic root of 11348221 is about 224.7204495251.

The spelling of 11348221 in words is "eleven million, three hundred forty-eight thousand, two hundred twenty-one".