23122212 has 12 divisors (see below), whose sum is σ = 53951856. Its totient is φ = 7707400.

The previous prime is 23122147. The next prime is 23122213. The reversal of 23122212 is 21222132.

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 = 23122191 and 23122200.

It is not an unprimeable number, because it can be changed into a prime (23122213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963414 + ... + 963437.

It is an arithmetic number, because the mean of its divisors is an integer number (4495988).

Almost surely, 2^23122212 is an apocalyptic number.

It is an amenable number.

23122212 is an abundant number, since it is smaller than the sum of its proper divisors (30829644).

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

23122212 is a wasteful number, since it uses less digits than its factorization.

23122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926858 (or 1926856 counting only the distinct ones).

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

The square root of 23122212 is about 4808.5561242435. The cubic root of 23122212 is about 284.8895108798.

Adding to 23122212 its reverse (21222132), we get a palindrome (44344344).

The spelling of 23122212 in words is "twenty-three million, one hundred twenty-two thousand, two hundred twelve".