22216529 has 8 divisors (see below), whose sum is σ = 23436000. Its totient is φ = 21002112.

The previous prime is 22216507. The next prime is 22216531. The reversal of 22216529 is 92561222.

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

It is a cyclic number.

It is not a de Polignac number, because 22216529 - 2¹² = 22212433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22216549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10817 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 2^22216529 is an apocalyptic number.

It is an amenable number.

22216529 is a deficient number, since it is larger than the sum of its proper divisors (1219471).

22216529 is a wasteful number, since it uses less digits than its factorization.

22216529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527.

The product of its digits is 4320, while the sum is 29.

The square root of 22216529 is about 4713.4413118230. The cubic root of 22216529 is about 281.1202104686.

The spelling of 22216529 in words is "twenty-two million, two hundred sixteen thousand, five hundred twenty-nine".