1212143344 has 20 divisors (see below), whose sum is σ = 2356552296. Its totient is φ = 604000832.

The previous prime is 1212143341. The next prime is 1212143389. The reversal of 1212143344 is 4433412121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212143341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124594 + ... + 133969.

Almost surely, 2^1212143344 is an apocalyptic number.

It is an amenable number.

1212143344 is a deficient number, since it is larger than the sum of its proper divisors (1144408952).

1212143344 is a wasteful number, since it uses less digits than its factorization.

1212143344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258864 (or 258858 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1212143344 is about 34815.8490345992. The cubic root of 1212143344 is about 1066.2310535490.

Adding to 1212143344 its reverse (4433412121), we get a palindrome (5645555465).

The spelling of 1212143344 in words is "one billion, two hundred twelve million, one hundred forty-three thousand, three hundred forty-four".