30231010331221 has 16 divisors (see below), whose sum is σ = 34556786300160. Its totient is φ = 25907000071680.

The previous prime is 30231010331183. The next prime is 30231010331251. The reversal of 30231010331221 is 12213301013203.

It is not a de Polignac number, because 30231010331221 - 2⁹ = 30231010330709 is a prime.

It is a super-2 number, since 2×30231010331221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231010331192 and 30231010331201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231010331251) 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, 990613255 + ... + 990643771.

It is an arithmetic number, because the mean of its divisors is an integer number (2159799143760).

Almost surely, 2^{30231010331221} is an apocalyptic number.

It is an amenable number.

30231010331221 is a deficient number, since it is larger than the sum of its proper divisors (4325775968939).

30231010331221 is a wasteful number, since it uses less digits than its factorization.

30231010331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54804.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30231010331221 its reverse (12213301013203), we get a palindrome (42444311344424).

The spelling of 30231010331221 in words is "thirty trillion, two hundred thirty-one billion, ten million, three hundred thirty-one thousand, two hundred twenty-one".