11221829 has 2 divisors, whose sum is σ = 11221830. Its totient is φ = 11221828.

The previous prime is 11221789. The next prime is 11221843. The reversal of 11221829 is 92812211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5769604 + 5452225 = 2402^2 + 2335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221829 is a prime.

It is a super-2 number, since 2×11221829² = 251858892210482, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11221798 and 11221807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11271829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610914 + 5610915.

It is an arithmetic number, because the mean of its divisors is an integer number (5610915).

Almost surely, 2^11221829 is an apocalyptic number.

It is an amenable number.

11221829 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221829 is an equidigital number, since it uses as much as digits as its factorization.

11221829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 26.

The square root of 11221829 is about 3349.8998492492. The cubic root of 11221829 is about 223.8830503994.

The spelling of 11221829 in words is "eleven million, two hundred twenty-one thousand, eight hundred twenty-nine".