22529222 has 8 divisors (see below), whose sum is σ = 33828816. Its totient is φ = 11252952.

The previous prime is 22529207. The next prime is 22529257. The reversal of 22529222 is 22292522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22529191 and 22529200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173 + ... + 7424.

It is an arithmetic number, because the mean of its divisors is an integer number (4228602).

Almost surely, 2^22529222 is an apocalyptic number.

22529222 is a deficient number, since it is larger than the sum of its proper divisors (11299594).

22529222 is a wasteful number, since it uses less digits than its factorization.

22529222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662.

The product of its digits is 2880, while the sum is 26.

The square root of 22529222 is about 4746.4957600318. The cubic root of 22529222 is about 282.4329733692.

The spelling of 22529222 in words is "twenty-two million, five hundred twenty-nine thousand, two hundred twenty-two".