23201212 has 6 divisors (see below), whose sum is σ = 40602128. Its totient is φ = 11600604.

The previous prime is 23201197. The next prime is 23201251. The reversal of 23201212 is 21210232.

It is a junction number, because it is equal to n+sod(n) for n = 23201192 and 23201201.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2900148 + ... + 2900155.

Almost surely, 2^23201212 is an apocalyptic number.

It is an amenable number.

23201212 is a deficient number, since it is larger than the sum of its proper divisors (17400916).

23201212 is a wasteful number, since it uses less digits than its factorization.

23201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5800307 (or 5800305 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23201212 is about 4816.7636437758. The cubic root of 23201212 is about 285.2135959061.

Adding to 23201212 its reverse (21210232), we get a palindrome (44411444).

The spelling of 23201212 in words is "twenty-three million, two hundred one thousand, two hundred twelve".