23312212 has 24 divisors (see below), whose sum is σ = 50863680. Its totient is φ = 9082560.

The previous prime is 23312147. The next prime is 23312227. The reversal of 23312212 is 21221332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37537 + ... + 38152.

It is an arithmetic number, because the mean of its divisors is an integer number (2119320).

Almost surely, 2^23312212 is an apocalyptic number.

23312212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23312212 is an abundant number, since it is smaller than the sum of its proper divisors (27551468).

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

23312212 is a wasteful number, since it uses less digits than its factorization.

23312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75711 (or 75709 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 23312212 is about 4828.2721547154. The cubic root of 23312212 is about 285.6677152191.

Adding to 23312212 its reverse (21221332), we get a palindrome (44533544).

The spelling of 23312212 in words is "twenty-three million, three hundred twelve thousand, two hundred twelve".