22871212 has 48 divisors (see below), whose sum is σ = 51869440. Its totient is φ = 8569152.

The previous prime is 22871207. The next prime is 22871213. The reversal of 22871212 is 21217822.

It is not an unprimeable number, because it can be changed into a prime (22871213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5263 + ... + 8569.

Almost surely, 2^22871212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22871212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25934720).

22871212 is an abundant number, since it is smaller than the sum of its proper divisors (28998228).

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

22871212 is a wasteful number, since it uses less digits than its factorization.

22871212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 3348 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 22871212 is about 4782.3855971680. The cubic root of 22871212 is about 283.8548984355.

The spelling of 22871212 in words is "twenty-two million, eight hundred seventy-one thousand, two hundred twelve".