11122112012 has 48 divisors (see below), whose sum is σ = 21566200320. Its totient is φ = 4976587200.

The previous prime is 11122111999. The next prime is 11122112041. The reversal of 11122112012 is 21021122111.

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, 1201562 + ... + 1210782.

It is an arithmetic number, because the mean of its divisors is an integer number (449295840).

Almost surely, 2^11122112012 is an apocalyptic number.

It is an amenable number.

11122112012 is a deficient number, since it is larger than the sum of its proper divisors (10444088308).

11122112012 is a wasteful number, since it uses less digits than its factorization.

11122112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662 (or 9660 counting only the distinct ones).

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

Adding to 11122112012 its reverse (21021122111), we get a palindrome (32143234123).

The spelling of 11122112012 in words is "eleven billion, one hundred twenty-two million, one hundred twelve thousand, twelve".