23021212 has 12 divisors (see below), whose sum is σ = 40773096. Its totient is φ = 11371760.

The previous prime is 23021203. The next prime is 23021227. The reversal of 23021212 is 21212032.

It is a junction number, because it is equal to n+sod(n) for n = 23021192 and 23021201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34339 + ... + 35002.

It is an arithmetic number, because the mean of its divisors is an integer number (3397758).

Almost surely, 2^23021212 is an apocalyptic number.

It is an amenable number.

23021212 is a deficient number, since it is larger than the sum of its proper divisors (17751884).

23021212 is a wasteful number, since it uses less digits than its factorization.

23021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69428 (or 69426 counting only the distinct ones).

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

The square root of 23021212 is about 4798.0425175273. The cubic root of 23021212 is about 284.4740973634.

Adding to 23021212 its reverse (21212032), we get a palindrome (44233244).

The spelling of 23021212 in words is "twenty-three million, twenty-one thousand, two hundred twelve".