1222112122 has 32 divisors (see below), whose sum is σ = 2292084864. Its totient is φ = 474777600.

The previous prime is 1222112119. The next prime is 1222112149. The reversal of 1222112122 is 2212112221.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1222112096 and 1222112105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43122 + ... + 65602.

It is an arithmetic number, because the mean of its divisors is an integer number (71627652).

Almost surely, 2^1222112122 is an apocalyptic number.

1222112122 is a deficient number, since it is larger than the sum of its proper divisors (1069972742).

1222112122 is a wasteful number, since it uses less digits than its factorization.

1222112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22854.

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

The square root of 1222112122 is about 34958.7202568973. The cubic root of 1222112122 is about 1069.1460044670.

Adding to 1222112122 its reverse (2212112221), we get a palindrome (3434224343).

Subtracting 1222112122 from its reverse (2212112221), we obtain a palindrome (990000099).

The spelling of 1222112122 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-two".