1011222 has 12 divisors (see below), whose sum is σ = 2191020.
Its totient is φ = 337068.
The previous prime is 1011221. The next prime is 1011229. The reversal of 1011222 is 2221101.
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 (1011221) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28072 + ... + 28107.
It is an arithmetic number, because the mean of its divisors is an integer number (182585).
21011222 is an apocalyptic number.
1011222 is an abundant number, since it is smaller than the sum of its proper divisors (1179798).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1011222 is a wasteful number, since it uses less digits than its factorization.
1011222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56187 (or 56184 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 1011222 is about 1005.5953460513.
The cubic root of 1011222 is about 100.3726760668.
Adding to 1011222 its reverse (2221101), we get a palindrome (3232323).
It can be divided in two parts, 101122 and 2, that added together give a square (101124 = 3182).
The spelling of 1011222 in words is "one million, eleven thousand, two hundred twenty-two".