1212324144 has 20 divisors (see below), whose sum is σ = 3131837496. Its totient is φ = 404108032.

The previous prime is 1212324131. The next prime is 1212324151. The reversal of 1212324144 is 4414232121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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, 12628329 + ... + 12628424.

Almost surely, 2^1212324144 is an apocalyptic number.

It is an amenable number.

1212324144 is an abundant number, since it is smaller than the sum of its proper divisors (1919513352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212324144 is a wasteful number, since it uses less digits than its factorization.

1212324144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25256764 (or 25256758 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 1212324144 is about 34818.4454563957. The cubic root of 1212324144 is about 1066.2840629535.

Adding to 1212324144 its reverse (4414232121), we get a palindrome (5626556265).

The spelling of 1212324144 in words is "one billion, two hundred twelve million, three hundred twenty-four thousand, one hundred forty-four".