12242220443311 has 16 divisors (see below), whose sum is σ = 13249067010048. Its totient is φ = 11278502373600.

The previous prime is 12242220443293. The next prime is 12242220443347. The reversal of 12242220443311 is 11334402224221.

It is a cyclic number.

It is not a de Polignac number, because 12242220443311 - 2²⁹ = 12241683572399 is a prime.

It is a super-2 number, since 2×12242220443311² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242220443911) 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, 40536796 + ... + 40837681.

It is an arithmetic number, because the mean of its divisors is an integer number (828066688128).

Almost surely, 2^{12242220443311} is an apocalyptic number.

12242220443311 is a deficient number, since it is larger than the sum of its proper divisors (1006846566737).

12242220443311 is a wasteful number, since it uses less digits than its factorization.

12242220443311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81374742.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12242220443311 its reverse (11334402224221), we get a palindrome (23576622667532).

The spelling of 12242220443311 in words is "twelve trillion, two hundred forty-two billion, two hundred twenty million, four hundred forty-three thousand, three hundred eleven".