221010112221112 has 32 divisors (see below), whose sum is σ = 441306318992400. Its totient is φ = 103403575105024.

The previous prime is 221010112221071. The next prime is 221010112221131. The reversal of 221010112221112 is 211122211010122.

It is a happy number.

221010112221112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221010112221112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4696723162 + ... + 4696770217.

Almost surely, 2^{221010112221112} is an apocalyptic number.

It is an amenable number.

221010112221112 is a deficient number, since it is larger than the sum of its proper divisors (220296206771288).

221010112221112 is a wasteful number, since it uses less digits than its factorization.

221010112221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393493575 (or 9393493571 counting only the distinct ones).

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

Adding to 221010112221112 its reverse (211122211010122), we get a palindrome (432132323231234).

The spelling of 221010112221112 in words is "two hundred twenty-one trillion, ten billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twelve".