221112201112 has 16 divisors (see below), whose sum is σ = 452274957000. Its totient is φ = 100505545920.

The previous prime is 221112201077. The next prime is 221112201113. The reversal of 221112201112 is 211102211122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112201113) 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, 1256319237 + ... + 1256319412.

Almost surely, 2^221112201112 is an apocalyptic number.

221112201112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221112201112 is an abundant number, since it is smaller than the sum of its proper divisors (231162755888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221112201112 is a wasteful number, since it uses less digits than its factorization.

221112201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512638666 (or 2512638662 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221112201112 its reverse (211102211122), we get a palindrome (432214412234).

It can be divided in two parts, 221112 and 201112, that added together give a palindrome (422224).

The spelling of 221112201112 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred one thousand, one hundred twelve".