30231312201221 has 8 divisors (see below), whose sum is σ = 30567983814144. Its totient is φ = 29896436170800.

The previous prime is 30231312201133. The next prime is 30231312201281. The reversal of 30231312201221 is 12210221313203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231312201221 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 (30231312201281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448861766 + ... + 448929111.

It is an arithmetic number, because the mean of its divisors is an integer number (3820997976768).

Almost surely, 2^{30231312201221} is an apocalyptic number.

It is an amenable number.

30231312201221 is a deficient number, since it is larger than the sum of its proper divisors (336671612923).

30231312201221 is a wasteful number, since it uses less digits than its factorization.

30231312201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897791251.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30231312201221 its reverse (12210221313203), we get a palindrome (42441533514424).

The spelling of 30231312201221 in words is "thirty trillion, two hundred thirty-one billion, three hundred twelve million, two hundred one thousand, two hundred twenty-one".