22066223 has 8 divisors (see below), whose sum is σ = 23100000. Its totient is φ = 21038688.

The previous prime is 22066189. The next prime is 22066229. The reversal of 22066223 is 32266022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22066223 is a prime.

It is a super-3 number, since 3×22066223³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22066229) 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, 6653 + ... + 9401.

It is an arithmetic number, because the mean of its divisors is an integer number (2887500).

Almost surely, 2^22066223 is an apocalyptic number.

22066223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22066223 is a deficient number, since it is larger than the sum of its proper divisors (1033777).

22066223 is a wasteful number, since it uses less digits than its factorization.

22066223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 22066223 is about 4697.4698508878. The cubic root of 22066223 is about 280.4848021184.

The spelling of 22066223 in words is "twenty-two million, sixty-six thousand, two hundred twenty-three".