11222655 has 32 divisors (see below), whose sum is σ = 18761664. Its totient is φ = 5723136.

The previous prime is 11222621. The next prime is 11222671. The reversal of 11222655 is 55622211.

It is a happy number.

It is not a de Polignac number, because 11222655 - 2¹⁶ = 11157119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40377 + ... + 40653.

It is an arithmetic number, because the mean of its divisors is an integer number (586302).

Almost surely, 2^11222655 is an apocalyptic number.

11222655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11222655 is a deficient number, since it is larger than the sum of its proper divisors (7539009).

11222655 is a wasteful number, since it uses less digits than its factorization.

11222655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its digits is 1200, while the sum is 24.

The square root of 11222655 is about 3350.0231342485. The cubic root of 11222655 is about 223.8885433501. Note that the first 3 decimals are identical.

Adding to 11222655 its reverse (55622211), we get a palindrome (66844866).

The spelling of 11222655 in words is "eleven million, two hundred twenty-two thousand, six hundred fifty-five".