23212212 has 12 divisors (see below), whose sum is σ = 54161856. Its totient is φ = 7737400.

The previous prime is 23212207. The next prime is 23212247. The reversal of 23212212 is 21221232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23212191 and 23212200.

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, 967164 + ... + 967187.

It is an arithmetic number, because the mean of its divisors is an integer number (4513488).

Almost surely, 2^23212212 is an apocalyptic number.

It is an amenable number.

23212212 is an abundant number, since it is smaller than the sum of its proper divisors (30949644).

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

23212212 is a wasteful number, since it uses less digits than its factorization.

23212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934358 (or 1934356 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 23212212 is about 4817.9053539894. The cubic root of 23212212 is about 285.2586632911.

Adding to 23212212 its reverse (21221232), we get a palindrome (44433444).

The spelling of 23212212 in words is "twenty-three million, two hundred twelve thousand, two hundred twelve".