1188222 has 32 divisors (see below), whose sum is σ = 2860800. Its totient is φ = 321408.

The previous prime is 1188197. The next prime is 1188223. The reversal of 1188222 is 2228811.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1188192 and 1188201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54 + ... + 1542.

It is an arithmetic number, because the mean of its divisors is an integer number (89400).

2^1188222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1188222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430400).

1188222 is an abundant number, since it is smaller than the sum of its proper divisors (1672578).

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

1188222 is a wasteful number, since it uses less digits than its factorization.

1188222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

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

The square root of 1188222 is about 1090.0559618662. The cubic root of 1188222 is about 105.9170467645.

The spelling of 1188222 in words is "one million, one hundred eighty-eight thousand, two hundred twenty-two".