1222112012 has 24 divisors (see below), whose sum is σ = 2347107840. Its totient is φ = 552175760.

The previous prime is 1222111991. The next prime is 1222112057. The reversal of 1222112012 is 2102112221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75812 + ... + 90507.

It is an arithmetic number, because the mean of its divisors is an integer number (97796160).

Almost surely, 2^1222112012 is an apocalyptic number.

It is an amenable number.

1222112012 is a deficient number, since it is larger than the sum of its proper divisors (1124995828).

1222112012 is a wasteful number, since it uses less digits than its factorization.

1222112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166501 (or 166499 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1222112012 is about 34958.7186836131. The cubic root of 1222112012 is about 1069.1459723898.

Adding to 1222112012 its reverse (2102112221), we get a palindrome (3324224233).

The spelling of 1222112012 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, twelve".