1111222 has 48 divisors (see below), whose sum is σ = 2216160. Its totient is φ = 413952.

The previous prime is 1111219. The next prime is 1111247. The reversal of 1111222 is 2221111.

1111222 = T₁₈₈ + T₁₈₉ + ... + T₂₃₆.

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

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 = 1111199 and 1111208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38304 + ... + 38332.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2^1111222 is an apocalyptic number.

1111222 is the 667-th heptagonal number.

1111222 is a deficient number, since it is larger than the sum of its proper divisors (1104938).

1111222 is a wasteful number, since it uses less digits than its factorization.

1111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 78 counting only the distinct ones).

The product of its digits is 8, while the sum is 10.

The square root of 1111222 is about 1054.1451512956. The cubic root of 1111222 is about 103.5778623261.

Adding to 1111222 its reverse (2221111), we get a palindrome (3332333).

It can be divided in two parts, 1111 and 222, that multiplied together give a palindrome (246642).

The spelling of 1111222 in words is "one million, one hundred eleven thousand, two hundred twenty-two".