221113031320 has 64 divisors (see below), whose sum is σ = 498825967680. Its totient is φ = 88210569216.

The previous prime is 221113031273. The next prime is 221113031329. The reversal of 221113031320 is 23130311122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113031329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27069877 + ... + 27078043.

It is an arithmetic number, because the mean of its divisors is an integer number (7794155745).

Almost surely, 2^221113031320 is an apocalyptic number.

221113031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221113031320 is an abundant number, since it is smaller than the sum of its proper divisors (277712936360).

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

221113031320 is a wasteful number, since it uses less digits than its factorization.

221113031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892 (or 9888 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221113031320 its reverse (23130311122), we get a palindrome (244243342442).

The spelling of 221113031320 in words is "two hundred twenty-one billion, one hundred thirteen million, thirty-one thousand, three hundred twenty".