2211222 has 16 divisors (see below), whose sum is σ = 4762800. Its totient is φ = 680352.

The previous prime is 2211217. The next prime is 2211227. The reversal of 2211222 is 2221122.

It is an interprime number because it is at equal distance from previous prime (2211217) and next prime (2211227).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2211198 and 2211207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211227) 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, 14097 + ... + 14252.

It is an arithmetic number, because the mean of its divisors is an integer number (297675).

2^2211222 is an apocalyptic number.

2211222 is an abundant number, since it is smaller than the sum of its proper divisors (2551578).

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

2211222 is a wasteful number, since it uses less digits than its factorization.

2211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28367.

The product of its digits is 32, while the sum is 12.

The square root of 2211222 is about 1487.0178210096. The cubic root of 2211222 is about 130.2799097000.

Adding to 2211222 its reverse (2221122), we get a palindrome (4432344).

It can be divided in two parts, 221122 and 2, that multiplied together give a palindrome (442244).

The spelling of 2211222 in words is "two million, two hundred eleven thousand, two hundred twenty-two".