11229855 has 64 divisors (see below), whose sum is σ = 23331840. Its totient is φ = 4478976.

The previous prime is 11229853. The next prime is 11229863. The reversal of 11229855 is 55892211.

It is not a de Polignac number, because 11229855 - 2¹ = 11229853 is a prime.

It is a super-2 number, since 2×11229855² = 252219286642050, which contains 22 as substring.

Its product of digits (7200) is a multiple of the sum of its prime divisors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11229853) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25719 + ... + 26151.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

Almost surely, 2^11229855 is an apocalyptic number.

11229855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11229855 is an abundant number, since it is smaller than the sum of its proper divisors (12101985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11229855 is a wasteful number, since it uses less digits than its factorization.

11229855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480.

The product of its digits is 7200, while the sum is 33.

The square root of 11229855 is about 3351.0975813903. The cubic root of 11229855 is about 223.9364123824.

The spelling of 11229855 in words is "eleven million, two hundred twenty-nine thousand, eight hundred fifty-five".