23331021212 has 12 divisors (see below), whose sum is σ = 40958088360. Its totient is φ = 11628710256.

The previous prime is 23331021211. The next prime is 23331021223. The reversal of 23331021212 is 21212013332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23331021211) 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 3 ways as a sum of consecutive naturals, for example, 9198662 + ... + 9201197.

It is an arithmetic number, because the mean of its divisors is an integer number (3413174030).

Almost surely, 2^23331021212 is an apocalyptic number.

It is an amenable number.

23331021212 is a deficient number, since it is larger than the sum of its proper divisors (17627067148).

23331021212 is a wasteful number, since it uses less digits than its factorization.

23331021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18400180 (or 18400178 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23331021212 its reverse (21212013332), we get a palindrome (44543034544).

The spelling of 23331021212 in words is "twenty-three billion, three hundred thirty-one million, twenty-one thousand, two hundred twelve".