221100212002112 has 28 divisors (see below), whose sum is σ = 457821634637856. Its totient is φ = 105743579652480.

The previous prime is 221100212002031. The next prime is 221100212002183. The reversal of 221100212002112 is 211200212001122.

It is a congruent 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, 75101972714 + ... + 75101975657.

Almost surely, 2^{221100212002112} is an apocalyptic number.

It is an amenable number.

221100212002112 is an abundant number, since it is smaller than the sum of its proper divisors (236721422635744).

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

221100212002112 is a wasteful number, since it uses less digits than its factorization.

221100212002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150203948406 (or 150203948396 counting only the distinct ones).

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

Adding to 221100212002112 its reverse (211200212001122), we get a palindrome (432300424003234).

The spelling of 221100212002112 in words is "two hundred twenty-one trillion, one hundred billion, two hundred twelve million, two thousand, one hundred twelve".