11222121112012 has 12 divisors (see below), whose sum is σ = 19639481034096. Its totient is φ = 5610840816560.

The previous prime is 11222121111989. The next prime is 11222121112021. The reversal of 11222121112012 is 21021112122211.

It is a happy number.

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, 54819928 + ... + 55024255.

It is an arithmetic number, because the mean of its divisors is an integer number (1636623419508).

Almost surely, 2^{11222121112012} is an apocalyptic number.

It is an amenable number.

11222121112012 is a deficient number, since it is larger than the sum of its proper divisors (8417359922084).

11222121112012 is a wasteful number, since it uses less digits than its factorization.

11222121112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109869728 (or 109869726 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11222121112012 its reverse (21021112122211), we get a palindrome (32243233234223).

The spelling of 11222121112012 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, twelve".