221312040112 has 20 divisors (see below), whose sum is σ = 429124257256. Its totient is φ = 110570296320.

The previous prime is 221312040107. The next prime is 221312040127. The reversal of 221312040112 is 211040213122.

It is a self number, because there is not a number n which added to its sum of digits gives 221312040112.

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, 5336433 + ... + 5377744.

Almost surely, 2^221312040112 is an apocalyptic number.

It is an amenable number.

221312040112 is a deficient number, since it is larger than the sum of its proper divisors (207812217144).

221312040112 is a wasteful number, since it uses less digits than its factorization.

221312040112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10715476 (or 10715470 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221312040112 its reverse (211040213122), we get a palindrome (432352253234).

The spelling of 221312040112 in words is "two hundred twenty-one billion, three hundred twelve million, forty thousand, one hundred twelve".