1122112222 has 64 divisors (see below), whose sum is σ = 2231400960. Its totient is φ = 409968000.

The previous prime is 1122112207. The next prime is 1122112289. The reversal of 1122112222 is 2222112211.

It is a happy number.

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 = 1122112196 and 1122112205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293628 + ... + 297424.

It is an arithmetic number, because the mean of its divisors is an integer number (34865640).

Almost surely, 2^1122112222 is an apocalyptic number.

1122112222 is a deficient number, since it is larger than the sum of its proper divisors (1109288738).

1122112222 is a wasteful number, since it uses less digits than its factorization.

1122112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937.

The product of its digits is 64, while the sum is 16.

The square root of 1122112222 is about 33497.9435488210. The cubic root of 1122112222 is about 1039.1512497026.

Adding to 1122112222 its reverse (2222112211), we get a palindrome (3344224433).

The spelling of 1122112222 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".