221223231332 has 12 divisors (see below), whose sum is σ = 387162430956. Its totient is φ = 110605393920.

The previous prime is 221223231331. The next prime is 221223231337. The reversal of 221223231332 is 233132322122.

It can be written as a sum of positive squares in 2 ways, for example, as 33366867556 + 187856363776 = 182666^2 + 433424^2 .

It is not an unprimeable number, because it can be changed into a prime (221223231331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1474973 + ... + 1618020.

It is an arithmetic number, because the mean of its divisors is an integer number (32263535913).

Almost surely, 2^221223231332 is an apocalyptic number.

It is an amenable number.

221223231332 is a deficient number, since it is larger than the sum of its proper divisors (165939199624).

221223231332 is a wasteful number, since it uses less digits than its factorization.

221223231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110878 (or 3110876 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

Adding to 221223231332 its reverse (233132322122), we get a palindrome (454355553454).

The spelling of 221223231332 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred thirty-one thousand, three hundred thirty-two".