11222112212012 has 24 divisors (see below), whose sum is σ = 21149475513936. Its totient is φ = 5179409419968.

The previous prime is 11222112211969. The next prime is 11222112212023. The reversal of 11222112212012 is 21021221122211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12329858 + ... + 13208694.

It is an arithmetic number, because the mean of its divisors is an integer number (881228146414).

Almost surely, 2^{11222112212012} is an apocalyptic number.

It is an amenable number.

11222112212012 is a deficient number, since it is larger than the sum of its proper divisors (9927363301924).

11222112212012 is a wasteful number, since it uses less digits than its factorization.

11222112212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124417 (or 1124415 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11222112212012 its reverse (21021221122211), we get a palindrome (32243333334223).

The spelling of 11222112212012 in words is "eleven trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, twelve".