221222011112 has 16 divisors (see below), whose sum is σ = 414799250400. Its totient is φ = 110608877680.

The previous prime is 221222011111. The next prime is 221222011121. The reversal of 221222011112 is 211110222122.

It is not an unprimeable number, because it can be changed into a prime (221222011111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230339 + ... + 703917.

It is an arithmetic number, because the mean of its divisors is an integer number (25924953150).

Almost surely, 2^221222011112 is an apocalyptic number.

It is an amenable number.

221222011112 is a deficient number, since it is larger than the sum of its proper divisors (193577239288).

221222011112 is a wasteful number, since it uses less digits than its factorization.

221222011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531976 (or 531972 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221222011112 its reverse (211110222122), we get a palindrome (432332233234).

The spelling of 221222011112 in words is "two hundred twenty-one billion, two hundred twenty-two million, eleven thousand, one hundred twelve".