230231022121212 has 144 divisors (see below), whose sum is σ = 627468700037760. Its totient is φ = 65511302640000.

The previous prime is 230231022121129. The next prime is 230231022121249. The reversal of 230231022121212 is 212121220132032.

It is a super-3 number, since 3×230231022121212³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1489233214 + ... + 1489387802.

It is an arithmetic number, because the mean of its divisors is an integer number (4357421528040).

Almost surely, 2^{230231022121212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230231022121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313734350018880).

230231022121212 is an abundant number, since it is smaller than the sum of its proper divisors (397237677916548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230231022121212 is a wasteful number, since it uses less digits than its factorization.

230231022121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164952 (or 164943 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 230231022121212 its reverse (212121220132032), we get a palindrome (442352242253244).

The spelling of 230231022121212 in words is "two hundred thirty trillion, two hundred thirty-one billion, twenty-two million, one hundred twenty-one thousand, two hundred twelve".