12240222204221 has 16 divisors (see below), whose sum is σ = 13765777115328. Its totient is φ = 10786925884800.

The previous prime is 12240222204209. The next prime is 12240222204239.

12240222204221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12240222204221 - 2⁶ = 12240222204157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240222204271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86362895 + ... + 86504508.

It is an arithmetic number, because the mean of its divisors is an integer number (860361069708).

Almost surely, 2^{12240222204221} is an apocalyptic number.

12240222204221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12240222204221 is a deficient number, since it is larger than the sum of its proper divisors (1525554911107).

12240222204221 is a wasteful number, since it uses less digits than its factorization.

12240222204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172867612.

The product of its (nonzero) digits is 4096, while the sum is 26.

It can be divided in two parts, 1224022 and 2204221, that added together give a palindrome (3428243).

The spelling of 12240222204221 in words is "twelve trillion, two hundred forty billion, two hundred twenty-two million, two hundred four thousand, two hundred twenty-one".