1122222 has 16 divisors (see below), whose sum is σ = 2287440. Its totient is φ = 366912.
The previous prime is 1122181. The next prime is 1122227. The reversal of 1122222 is 2222211.
It is a nude number because it is divisible by every one of its digits.
1122222 is a modest number, since divided by 2222 gives 112 as remainder.
It is a plaindrome in base 10.
It is a zygodrome in base 10.
It is a junction number, because it is equal to n+sod(n) for n = 1122198 and 1122207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1122227) 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, 1447 + ... + 2082.
It is an arithmetic number, because the mean of its divisors is an integer number (142965).
21122222 is an apocalyptic number.
1122222 is an abundant number, since it is smaller than the sum of its proper divisors (1165218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1122222 is a wasteful number, since it uses less digits than its factorization.
1122222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3587.
The product of its digits is 32, while the sum is 12.
The square root of 1122222 is about 1059.3498005852. The cubic root of 1122222 is about 103.9185135864.
Adding to 1122222 its reverse (2222211), we get a palindrome (3344433).
It can be divided in two parts, 11 and 22222, that multiplied together give a palindrome (244442).
The spelling of 1122222 in words is "one million, one hundred twenty-two thousand, two hundred twenty-two".
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