221110221211112 has 16 divisors (see below), whose sum is σ = 432606954543840. Its totient is φ = 105748366666096.

The previous prime is 221110221211049. The next prime is 221110221211123. The reversal of 221110221211112 is 211112122011122.

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, 600842992238 + ... + 600842992605.

It is an arithmetic number, because the mean of its divisors is an integer number (27037934658990).

Almost surely, 2^{221110221211112} is an apocalyptic number.

It is an amenable number.

221110221211112 is a deficient number, since it is larger than the sum of its proper divisors (211496733332728).

221110221211112 is a wasteful number, since it uses less digits than its factorization.

221110221211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201685984872 (or 1201685984868 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 221110221211112 its reverse (211112122011122), we get a palindrome (432222343222234).

The spelling of 221110221211112 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twelve".