11022399 has 20 divisors (see below), whose sum is σ = 16872240. Its totient is φ = 7166880.

The previous prime is 11022397. The next prime is 11022437. The reversal of 11022399 is 99322011.

It is a Cunningham number, because it is equal to 3320²-1.

It is not a de Polignac number, because 11022399 - 2¹ = 11022397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022397) 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 in 19 ways as a sum of consecutive naturals, for example, 1662 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (843612).

Almost surely, 2^11022399 is an apocalyptic number.

11022399 is a deficient number, since it is larger than the sum of its proper divisors (5849841).

11022399 is an equidigital number, since it uses as much as digits as its factorization.

11022399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372 (or 3363 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 11022399 is about 3319.9998493976. Note that the first 3 decimals coincide. The cubic root of 11022399 is about 222.5488610448.

The spelling of 11022399 in words is "eleven million, twenty-two thousand, three hundred ninety-nine".