1112222222 has 16 divisors (see below), whose sum is σ = 1688573952. Its totient is φ = 549390360.

The previous prime is 1112222213. The next prime is 1112222227. The reversal of 1112222222 is 2222222111.

It is a happy number.

It is a super-2 number, since 2×1112222222² = 2474076542221234568, which contains 22 as substring.

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

1112222222 is a modest number, since divided by 22222 gives 11122 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1112222222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112222227) 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, 82523 + ... + 95049.

It is an arithmetic number, because the mean of its divisors is an integer number (105535872).

Almost surely, 2^1112222222 is an apocalyptic number.

1112222222 is a deficient number, since it is larger than the sum of its proper divisors (576351730).

1112222222 is a wasteful number, since it uses less digits than its factorization.

1112222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13063.

The product of its digits is 128, while the sum is 17.

The square root of 1112222222 is about 33349.9958320837. The cubic root of 1112222222 is about 1036.0893016197.

Adding to 1112222222 its reverse (2222222111), we get a palindrome (3334444333).

It can be divided in two parts, 111 and 2222222, that multiplied together give a palindrome (246666642).

The spelling of 1112222222 in words is "one billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".