13222120012221 has 8 divisors (see below), whose sum is σ = 17731397936160. Its totient is φ = 8763794381552.

The previous prime is 13222120012193. The next prime is 13222120012237. The reversal of 13222120012221 is 12221002122231.

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 13222120012221 - 2⁴³ = 4426026990013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222120012271) 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, 12738072711 + ... + 12738073748.

It is an arithmetic number, because the mean of its divisors is an integer number (2216424742020).

Almost surely, 2^{13222120012221} is an apocalyptic number.

It is an amenable number.

13222120012221 is a deficient number, since it is larger than the sum of its proper divisors (4509277923939).

13222120012221 is a wasteful number, since it uses less digits than its factorization.

13222120012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25476146635.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 13222120012221 its reverse (12221002122231), we get a palindrome (25443122134452).

The spelling of 13222120012221 in words is "thirteen trillion, two hundred twenty-two billion, one hundred twenty million, twelve thousand, two hundred twenty-one".