1101222 has 16 divisors (see below), whose sum is σ = 2447280. Its totient is φ = 367056.

The previous prime is 1101211. The next prime is 1101229. The reversal of 1101222 is 2221011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10143 + ... + 10250.

It is an arithmetic number, because the mean of its divisors is an integer number (152955).

2^1101222 is an apocalyptic number.

1101222 is an abundant number, since it is smaller than the sum of its proper divisors (1346058).

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

1101222 is a wasteful number, since it uses less digits than its factorization.

1101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404 (or 20398 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1101222 is about 1049.3912521076. The cubic root of 1101222 is about 103.2662230448.

Adding to 1101222 its reverse (2221011), we get a palindrome (3322233).

The spelling of 1101222 in words is "one million, one hundred one thousand, two hundred twenty-two".