11222000 has 80 divisors (see below), whose sum is σ = 28164864. Its totient is φ = 4320000.

The previous prime is 11221993. The next prime is 11222021. The reversal of 11222000 is 22211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61910 + ... + 62090.

Almost surely, 2^11222000 is an apocalyptic number.

11222000 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 11222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14082432).

11222000 is an abundant number, since it is smaller than the sum of its proper divisors (16942864).

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

11222000 is a wasteful number, since it uses less digits than its factorization.

11222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 11222000 is about 3349.9253723031. The cubic root of 11222000 is about 223.8841875820.

Adding to 11222000 its reverse (22211), we get a palindrome (11244211).

The spelling of 11222000 in words is "eleven million, two hundred twenty-two thousand".