22725212 has 12 divisors (see below), whose sum is σ = 41140680. Its totient is φ = 10970736.

The previous prime is 22725211. The next prime is 22725217. The reversal of 22725212 is 21252722.

It is a super-3 number, since 3×22725212³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22725211) 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, 97838 + ... + 98069.

It is an arithmetic number, because the mean of its divisors is an integer number (3428390).

Almost surely, 2^22725212 is an apocalyptic number.

It is an amenable number.

22725212 is a deficient number, since it is larger than the sum of its proper divisors (18415468).

22725212 is a wasteful number, since it uses less digits than its factorization.

22725212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195940 (or 195938 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 22725212 is about 4767.0968104288. The cubic root of 22725212 is about 283.2496060177.

Adding to 22725212 its reverse (21252722), we get a palindrome (43977934).

The spelling of 22725212 in words is "twenty-two million, seven hundred twenty-five thousand, two hundred twelve".