3012221300221 has 4 divisors (see below), whose sum is σ = 3442538628832. Its totient is φ = 2581903971612.

The previous prime is 3012221300219. The next prime is 3012221300311. The reversal of 3012221300221 is 1220031222103.

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 not a de Polignac number, because 3012221300221 - 2¹ = 3012221300219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012221309221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215158664295 + ... + 215158664308.

It is an arithmetic number, because the mean of its divisors is an integer number (860634657208).

Almost surely, 2^{3012221300221} is an apocalyptic number.

It is an amenable number.

3012221300221 is a deficient number, since it is larger than the sum of its proper divisors (430317328611).

3012221300221 is an equidigital number, since it uses as much as digits as its factorization.

3012221300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430317328610.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 3012221300221 its reverse (1220031222103), we get a palindrome (4232252522324).

The spelling of 3012221300221 in words is "three trillion, twelve billion, two hundred twenty-one million, three hundred thousand, two hundred twenty-one".