221314013112 has 64 divisors (see below), whose sum is σ = 563623401600. Its totient is φ = 72397159040.

The previous prime is 221314013101. The next prime is 221314013113. The reversal of 221314013112 is 211310413122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221314013113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698062 + ... + 964322.

It is an arithmetic number, because the mean of its divisors is an integer number (8806615650).

Almost surely, 2^221314013112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221314013112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281811700800).

221314013112 is an abundant number, since it is smaller than the sum of its proper divisors (342309388488).

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

221314013112 is a wasteful number, since it uses less digits than its factorization.

221314013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266916 (or 266912 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221314013112 its reverse (211310413122), we get a palindrome (432624426234).

The spelling of 221314013112 in words is "two hundred twenty-one billion, three hundred fourteen million, thirteen thousand, one hundred twelve".