1224243231212 has 12 divisors (see below), whose sum is σ = 2142433463016. Its totient is φ = 612119384640.

The previous prime is 1224243231203. The next prime is 1224243231229. The reversal of 1224243231212 is 2121323424221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633412 + ... + 2261972.

It is an arithmetic number, because the mean of its divisors is an integer number (178536121918).

Almost surely, 2^{1224243231212} is an apocalyptic number.

It is an amenable number.

1224243231212 is a deficient number, since it is larger than the sum of its proper divisors (918190231804).

1224243231212 is a wasteful number, since it uses less digits than its factorization.

1224243231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115488 (or 1115486 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 1224243231212 its reverse (2121323424221), we get a palindrome (3345566655433).

The spelling of 1224243231212 in words is "one trillion, two hundred twenty-four billion, two hundred forty-three million, two hundred thirty-one thousand, two hundred twelve".