23212 has 12 divisors (see below), whose sum is σ = 46480. Its totient is φ = 9936.

The previous prime is 23209. The next prime is 23227. The reversal of 23212 is 21232.

23212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

23212 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

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, 387 + ... + 442.

2²³²¹² is an apocalyptic number.

It is an amenable number.

23212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23240).

23212 is a wasteful number, since it uses less digits than its factorization.

23212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its digits is 24, while the sum is 10.

The square root of 23212 is about 152.3548489547. The cubic root of 23212 is about 28.5257794854.

Adding to 23212 its reverse (21232), we get a palindrome (44444).

The spelling of 23212 in words is "twenty-three thousand, two hundred twelve", and thus it is an iban number.