23421212 has 12 divisors (see below), whose sum is σ = 42400680. Its totient is φ = 11306736.

The previous prime is 23421173. The next prime is 23421217. The reversal of 23421212 is 21212432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100838 + ... + 101069.

It is an arithmetic number, because the mean of its divisors is an integer number (3533390).

Almost surely, 2^23421212 is an apocalyptic number.

It is an amenable number.

23421212 is a deficient number, since it is larger than the sum of its proper divisors (18979468).

23421212 is a wasteful number, since it uses less digits than its factorization.

23421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201940 (or 201938 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 23421212 is about 4839.5466729850. The cubic root of 23421212 is about 286.1122515666.

Adding to 23421212 its reverse (21212432), we get a palindrome (44633644).

The spelling of 23421212 in words is "twenty-three million, four hundred twenty-one thousand, two hundred twelve".