11222087 has 2 divisors, whose sum is σ = 11222088. Its totient is φ = 11222086.

The previous prime is 11222083. The next prime is 11222089. The reversal of 11222087 is 78022211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11222087 - 2² = 11222083 is a prime.

Together with 11222089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11222083) 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, 5611043 + 5611044.

It is an arithmetic number, because the mean of its divisors is an integer number (5611044).

Almost surely, 2^11222087 is an apocalyptic number.

11222087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222087 is an equidigital number, since it uses as much as digits as its factorization.

11222087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 11222087 is about 3349.9383576418. The cubic root of 11222087 is about 223.8847661442.

Adding to 11222087 its reverse (78022211), we get a palindrome (89244298).

The spelling of 11222087 in words is "eleven million, two hundred twenty-two thousand, eighty-seven".