1230310212221 has 4 divisors (see below), whose sum is σ = 1230359752512. Its totient is φ = 1230260671932.

The previous prime is 1230310212193. The next prime is 1230310212227. The reversal of 1230310212221 is 1222120130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230310212221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230310212193 and 1230310212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230310212227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24732875 + ... + 24782568.

It is an arithmetic number, because the mean of its divisors is an integer number (307589938128).

Almost surely, 2^{1230310212221} is an apocalyptic number.

It is an amenable number.

1230310212221 is a deficient number, since it is larger than the sum of its proper divisors (49540291).

1230310212221 is an equidigital number, since it uses as much as digits as its factorization.

1230310212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49540290.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1230310212221 its reverse (1222120130321), we get a palindrome (2452430342542).

The spelling of 1230310212221 in words is "one trillion, two hundred thirty billion, three hundred ten million, two hundred twelve thousand, two hundred twenty-one".