212221230313 has 4 divisors (see below), whose sum is σ = 212627007568. Its totient is φ = 211815453060.

The previous prime is 212221230289. The next prime is 212221230337. The reversal of 212221230313 is 313032122212.

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 an interprime number because it is at equal distance from previous prime (212221230289) and next prime (212221230337).

It is a cyclic number.

It is not a de Polignac number, because 212221230313 - 2⁵ = 212221230281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212221233313) 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 3 ways as a sum of consecutive naturals, for example, 202887843 + ... + 202888888.

It is an arithmetic number, because the mean of its divisors is an integer number (53156751892).

Almost surely, 2^212221230313 is an apocalyptic number.

It is an amenable number.

212221230313 is a deficient number, since it is larger than the sum of its proper divisors (405777255).

212221230313 is an equidigital number, since it uses as much as digits as its factorization.

212221230313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405777254.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212221230313 its reverse (313032122212), we get a palindrome (525253352525).

The spelling of 212221230313 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred thirty thousand, three hundred thirteen".