11221120112012 has 12 divisors (see below), whose sum is σ = 19637313191496. Its totient is φ = 5610459200160.

The previous prime is 11221120111979. The next prime is 11221120112057. The reversal of 11221120112012 is 21021102112211.

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, 24963353 + ... + 25408880.

It is an arithmetic number, because the mean of its divisors is an integer number (1636442765958).

Almost surely, 2^{11221120112012} is an apocalyptic number.

It is an amenable number.

11221120112012 is a deficient number, since it is larger than the sum of its proper divisors (8416193079484).

11221120112012 is a wasteful number, since it uses less digits than its factorization.

11221120112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50427928 (or 50427926 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11221120112012 its reverse (21021102112211), we get a palindrome (32242222224223).

The spelling of 11221120112012 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty million, one hundred twelve thousand, twelve".