12322212101221 has 32 divisors (see below), whose sum is σ = 14056494299136. Its totient is φ = 10692352440000.

The previous prime is 12322212101219. The next prime is 12322212101239. The reversal of 12322212101221 is 12210121222321.

It is not a de Polignac number, because 12322212101221 - 2¹ = 12322212101219 is a prime.

It is a super-2 number, since 2×12322212101221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12322212101192 and 12322212101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322212101281) 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, 318787746 + ... + 318826396.

It is an arithmetic number, because the mean of its divisors is an integer number (439265446848).

Almost surely, 2^{12322212101221} is an apocalyptic number.

12322212101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12322212101221 is a deficient number, since it is larger than the sum of its proper divisors (1734282197915).

12322212101221 is a wasteful number, since it uses less digits than its factorization.

12322212101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41313.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12322212101221 its reverse (12210121222321), we get a palindrome (24532333323542).

The spelling of 12322212101221 in words is "twelve trillion, three hundred twenty-two billion, two hundred twelve million, one hundred one thousand, two hundred twenty-one".