11223101 has 2 divisors, whose sum is σ = 11223102. Its totient is φ = 11223100.

The previous prime is 11223097. The next prime is 11223109. The reversal of 11223101 is 10132211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 4618201 = 2570^2 + 2149^2 .

It is an emirp because it is prime and its reverse (10132211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11223101 - 2² = 11223097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11223109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611550 + 5611551.

It is an arithmetic number, because the mean of its divisors is an integer number (5611551).

Almost surely, 2^11223101 is an apocalyptic number.

It is an amenable number.

11223101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223101 is an equidigital number, since it uses as much as digits as its factorization.

11223101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11223101 is about 3350.0897002916. The cubic root of 11223101 is about 223.8915091655.

Adding to 11223101 its reverse (10132211), we get a palindrome (21355312).

The spelling of 11223101 in words is "eleven million, two hundred twenty-three thousand, one hundred one".