221022132302321 has 32 divisors (see below), whose sum is σ = 254003172433920. Its totient is φ = 188394651922176.

The previous prime is 221022132302311. The next prime is 221022132302333. The reversal of 221022132302321 is 123203231220122.

It is a de Polignac number, because none of the positive numbers 2^k-221022132302321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221022132302311) 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, 5654311145 + ... + 5654350233.

It is an arithmetic number, because the mean of its divisors is an integer number (7937599138560).

Almost surely, 2^{221022132302321} is an apocalyptic number.

It is an amenable number.

221022132302321 is a deficient number, since it is larger than the sum of its proper divisors (32981040131599).

221022132302321 is a wasteful number, since it uses less digits than its factorization.

221022132302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43133.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 221022132302321 its reverse (123203231220122), we get a palindrome (344225363522443).

The spelling of 221022132302321 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred thirty-two million, three hundred two thousand, three hundred twenty-one".