30231301221 has 64 divisors (see below), whose sum is σ = 50091110400. Its totient is φ = 18088939440.

The previous prime is 30231301213. The next prime is 30231301249. The reversal of 30231301221 is 12210313203.

It is not a de Polignac number, because 30231301221 - 2³ = 30231301213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30231301194 and 30231301203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231301291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1892550 + ... + 1908456.

It is an arithmetic number, because the mean of its divisors is an integer number (782673600).

Almost surely, 2^30231301221 is an apocalyptic number.

It is an amenable number.

30231301221 is a deficient number, since it is larger than the sum of its proper divisors (19859809179).

30231301221 is an equidigital number, since it uses as much as digits as its factorization.

30231301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16018 (or 16000 counting only the distinct ones).

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

Adding to 30231301221 its reverse (12210313203), we get a palindrome (42441614424).

The spelling of 30231301221 in words is "thirty billion, two hundred thirty-one million, three hundred one thousand, two hundred twenty-one".