1210303312221 has 8 divisors (see below), whose sum is σ = 1653097207104. Its totient is φ = 787189146080.

The previous prime is 1210303312201. The next prime is 1210303312271. The reversal of 1210303312221 is 1222133030121.

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

It is a cyclic number.

It is not a de Polignac number, because 1210303312221 - 2⁷ = 1210303312093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210303312201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4919932041 + ... + 4919932286.

It is an arithmetic number, because the mean of its divisors is an integer number (206637150888).

Almost surely, 2^{1210303312221} is an apocalyptic number.

It is an amenable number.

1210303312221 is a deficient number, since it is larger than the sum of its proper divisors (442793894883).

1210303312221 is an equidigital number, since it uses as much as digits as its factorization.

1210303312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9839864371.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1210303312221 its reverse (1222133030121), we get a palindrome (2432436342342).

The spelling of 1210303312221 in words is "one trillion, two hundred ten billion, three hundred three million, three hundred twelve thousand, two hundred twenty-one".