221332322332 has 24 divisors (see below), whose sum is σ = 426727132272. Its totient is φ = 99609504000.

The previous prime is 221332322317. The next prime is 221332322353. The reversal of 221332322332 is 233223233122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221332322332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24897933 + ... + 24906820.

It is an arithmetic number, because the mean of its divisors is an integer number (17780297178).

Almost surely, 2^221332322332 is an apocalyptic number.

221332322332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221332322332 is a deficient number, since it is larger than the sum of its proper divisors (205394809940).

221332322332 is a wasteful number, since it uses less digits than its factorization.

221332322332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49804869 (or 49804867 counting only the distinct ones).

The product of its digits is 15552, while the sum is 28.

Adding to 221332322332 its reverse (233223233122), we get a palindrome (454555555454).

The spelling of 221332322332 in words is "two hundred twenty-one billion, three hundred thirty-two million, three hundred twenty-two thousand, three hundred thirty-two".