23212112 has 80 divisors (see below), whose sum is σ = 56996352. Its totient is φ = 8895360.

The previous prime is 23212099. The next prime is 23212139. The reversal of 23212112 is 21121232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102143 + ... + 102369.

Almost surely, 2^23212112 is an apocalyptic number.

23212112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28498176).

23212112 is an abundant number, since it is smaller than the sum of its proper divisors (33784240).

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

23212112 is a wasteful number, since it uses less digits than its factorization.

23212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 330 counting only the distinct ones).

The product of its digits is 48, while the sum is 14.

The square root of 23212112 is about 4817.8949760243. The cubic root of 23212112 is about 285.2582536518.

Adding to 23212112 its reverse (21121232), we get a palindrome (44333344).

The spelling of 23212112 in words is "twenty-three million, two hundred twelve thousand, one hundred twelve".