12102222120321 has 32 divisors (see below), whose sum is σ = 17434449187200. Its totient is φ = 7450932787200.

The previous prime is 12102222120319. The next prime is 12102222120341. The reversal of 12102222120321 is 12302122220121.

It is not a de Polignac number, because 12102222120321 - 2¹ = 12102222120319 is a prime.

It is a super-2 number, since 2×12102222120321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102222120301) 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, 31671280 + ... + 32051121.

It is an arithmetic number, because the mean of its divisors is an integer number (544826537100).

Almost surely, 2^{12102222120321} is an apocalyptic number.

It is an amenable number.

12102222120321 is a deficient number, since it is larger than the sum of its proper divisors (5332227066879).

12102222120321 is a wasteful number, since it uses less digits than its factorization.

12102222120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63722529.

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

Adding to 12102222120321 its reverse (12302122220121), we get a palindrome (24404344340442).

The spelling of 12102222120321 in words is "twelve trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty thousand, three hundred twenty-one".