221324112331 has 48 divisors (see below), whose sum is σ = 263292120000. Its totient is φ = 185469419520.

The previous prime is 221324112311. The next prime is 221324112353. The reversal of 221324112331 is 133211423122.

It is not a de Polignac number, because 221324112331 - 2⁵ = 221324112299 is a prime.

It is a super-2 number, since 2×221324112331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221324112296 and 221324112305.

It is not an unprimeable number, because it can be changed into a prime (221324112301) 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 47 ways as a sum of consecutive naturals, for example, 157078155 + ... + 157079563.

It is an arithmetic number, because the mean of its divisors is an integer number (5485252500).

Almost surely, 2^221324112331 is an apocalyptic number.

221324112331 is a deficient number, since it is larger than the sum of its proper divisors (41968007669).

221324112331 is a wasteful number, since it uses less digits than its factorization.

221324112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1885 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 221324112331 its reverse (133211423122), we get a palindrome (354535535453).

The spelling of 221324112331 in words is "two hundred twenty-one billion, three hundred twenty-four million, one hundred twelve thousand, three hundred thirty-one".