11221112012 has 12 divisors (see below), whose sum is σ = 21422123016. Its totient is φ = 5100505440.

The previous prime is 11221112009. The next prime is 11221112041. The reversal of 11221112012 is 21021112211.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127512593 + ... + 127512680.

It is an arithmetic number, because the mean of its divisors is an integer number (1785176918).

Almost surely, 2^11221112012 is an apocalyptic number.

It is an amenable number.

11221112012 is a deficient number, since it is larger than the sum of its proper divisors (10201011004).

11221112012 is a wasteful number, since it uses less digits than its factorization.

11221112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255025288 (or 255025286 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11221112012 its reverse (21021112211), we get a palindrome (32242224223).

The spelling of 11221112012 in words is "eleven billion, two hundred twenty-one million, one hundred twelve thousand, twelve".