22331033321221 has 8 divisors (see below), whose sum is σ = 23302420384320. Its totient is φ = 21359685639072.

The previous prime is 22331033321203. The next prime is 22331033321227. The reversal of 22331033321221 is 12212333013322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22331033321221 - 2⁵ = 22331033321189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22331033321221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331033321227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8683551 + ... + 10957468.

It is an arithmetic number, because the mean of its divisors is an integer number (2912802548040).

Almost surely, 2^{22331033321221} is an apocalyptic number.

It is an amenable number.

22331033321221 is a deficient number, since it is larger than the sum of its proper divisors (971387063099).

22331033321221 is a wasteful number, since it uses less digits than its factorization.

22331033321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19690475.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 22331033321221 its reverse (12212333013322), we get a palindrome (34543366334543).

The spelling of 22331033321221 in words is "twenty-two trillion, three hundred thirty-one billion, thirty-three million, three hundred twenty-one thousand, two hundred twenty-one".