1212230000643 has 8 divisors (see below), whose sum is σ = 1616684061888. Its totient is φ = 807964636584.

The previous prime is 1212230000629. The next prime is 1212230000731. The reversal of 1212230000643 is 3460000322121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212230000643 - 2⁴ = 1212230000627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212230000243) 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 7 ways as a sum of consecutive naturals, for example, 47159305 + ... + 47185002.

It is an arithmetic number, because the mean of its divisors is an integer number (202085507736).

Almost surely, 2^{1212230000643} is an apocalyptic number.

1212230000643 is a deficient number, since it is larger than the sum of its proper divisors (404454061245).

1212230000643 is an equidigital number, since it uses as much as digits as its factorization.

1212230000643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94348593.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1212230000643 its reverse (3460000322121), we get a palindrome (4672230322764).

The spelling of 1212230000643 in words is "one trillion, two hundred twelve billion, two hundred thirty million, six hundred forty-three", and thus it is an aban number.