11222880 has 96 divisors (see below), whose sum is σ = 35852544. Its totient is φ = 2950656.

The previous prime is 11222867. The next prime is 11222917. The reversal of 11222880 is 8822211.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11222880.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 49327 + ... + 49553.

It is an arithmetic number, because the mean of its divisors is an integer number (373464).

Almost surely, 2^11222880 is an apocalyptic number.

11222880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17926272).

11222880 is an abundant number, since it is smaller than the sum of its proper divisors (24629664).

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

11222880 is a wasteful number, since it uses less digits than its factorization.

11222880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 11222880 is about 3350.0567159378. The cubic root of 11222880 is about 223.8900395672.

The spelling of 11222880 in words is "eleven million, two hundred twenty-two thousand, eight hundred eighty".