222132321 has 32 divisors (see below), whose sum is σ = 346705920. Its totient is φ = 140283792.

The previous prime is 222132311. The next prime is 222132419. The reversal of 222132321 is 123231222.

It is not a de Polignac number, because 222132321 - 2⁷ = 222132193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222132294 and 222132303.

It is not an unprimeable number, because it can be changed into a prime (222132311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64776 + ... + 68118.

It is an arithmetic number, because the mean of its divisors is an integer number (10834560).

Almost surely, 2^222132321 is an apocalyptic number.

It is an amenable number.

222132321 is a deficient number, since it is larger than the sum of its proper divisors (124573599).

222132321 is a wasteful number, since it uses less digits than its factorization.

222132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482 (or 3476 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222132321 is about 14904.1041663026. The cubic root of 222132321 is about 605.6251725790.

Adding to 222132321 its reverse (123231222), we get a palindrome (345363543).

The spelling of 222132321 in words is "two hundred twenty-two million, one hundred thirty-two thousand, three hundred twenty-one".