1224243231211 has 96 divisors (see below), whose sum is σ = 1714942091520. Its totient is φ = 858809952000.

The previous prime is 1224243231203. The next prime is 1224243231229. The reversal of 1224243231211 is 1121323424221.

It is not a de Polignac number, because 1224243231211 - 2³ = 1224243231203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1224243231211.

It is not an unprimeable number, because it can be changed into a prime (1224243231311) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47403460 + ... + 47429278.

It is an arithmetic number, because the mean of its divisors is an integer number (17863980120).

Almost surely, 2^{1224243231211} is an apocalyptic number.

1224243231211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1224243231211 is a deficient number, since it is larger than the sum of its proper divisors (490698860309).

1224243231211 is a wasteful number, since it uses less digits than its factorization.

1224243231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26025 (or 26018 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 1224243231211 its reverse (1121323424221), we get a palindrome (2345566655432).

The spelling of 1224243231211 in words is "one trillion, two hundred twenty-four billion, two hundred forty-three million, two hundred thirty-one thousand, two hundred eleven".