12303310221 has 6 divisors (see below), whose sum is σ = 17771448110. Its totient is φ = 8202206808.

The previous prime is 12303310211. The next prime is 12303310223. The reversal of 12303310221 is 12201330321.

It can be written as a sum of positive squares in only one way, i.e., 9083996100 + 3219314121 = 95310^2 + 56739^2 .

It is not a de Polignac number, because 12303310221 - 2⁷ = 12303310093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12303310194 and 12303310203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303310223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 683517226 + ... + 683517243.

Almost surely, 2^12303310221 is an apocalyptic number.

It is an amenable number.

12303310221 is a deficient number, since it is larger than the sum of its proper divisors (5468137889).

12303310221 is a wasteful number, since it uses less digits than its factorization.

12303310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367034475 (or 1367034472 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12303310221 its reverse (12201330321), we get a palindrome (24504640542).

It can be divided in two parts, 1230 and 3310221, that added together give a triangular number (3311451 = T₂₅₇₃).

The spelling of 12303310221 in words is "twelve billion, three hundred three million, three hundred ten thousand, two hundred twenty-one".