221323013132 has 18 divisors (see below), whose sum is σ = 419400563148. Its totient is φ = 102149082672.

The previous prime is 221323013129. The next prime is 221323013143. The reversal of 221323013132 is 231310323122.

It is a super-2 number, since 2×221323013132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221323013098 and 221323013107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163699778 + ... + 163701129.

It is an arithmetic number, because the mean of its divisors is an integer number (23300031286).

Almost surely, 2^221323013132 is an apocalyptic number.

It is an amenable number.

221323013132 is a deficient number, since it is larger than the sum of its proper divisors (198077550016).

221323013132 is a wasteful number, since it uses less digits than its factorization.

221323013132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327400937 (or 327400922 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221323013132 its reverse (231310323122), we get a palindrome (452633336254).

The spelling of 221323013132 in words is "two hundred twenty-one billion, three hundred twenty-three million, thirteen thousand, one hundred thirty-two".