12433301221 has 16 divisors (see below), whose sum is σ = 13813675200. Its totient is φ = 11095168000.

The previous prime is 12433301213. The next prime is 12433301261. The reversal of 12433301221 is 12210333421.

It is a cyclic number.

It is not a de Polignac number, because 12433301221 - 2³ = 12433301213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12433301192 and 12433301201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12433301261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441285 + ... + 468613.

It is an arithmetic number, because the mean of its divisors is an integer number (863354700).

Almost surely, 2^12433301221 is an apocalyptic number.

12433301221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12433301221 is a deficient number, since it is larger than the sum of its proper divisors (1380373979).

12433301221 is a wasteful number, since it uses less digits than its factorization.

12433301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28100.

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

Adding to 12433301221 its reverse (12210333421), we get a palindrome (24643634642).

The spelling of 12433301221 in words is "twelve billion, four hundred thirty-three million, three hundred one thousand, two hundred twenty-one".