22166230243 has 16 divisors (see below), whose sum is σ = 25186924800. Its totient is φ = 19393909920.

The previous prime is 22166230241. The next prime is 22166230271. The reversal of 22166230243 is 34203266122.

It is a cyclic number.

It is not a de Polignac number, because 22166230243 - 2¹ = 22166230241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22166230241) 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, 861873 + ... + 887218.

It is an arithmetic number, because the mean of its divisors is an integer number (1574182800).

Almost surely, 2^22166230243 is an apocalyptic number.

22166230243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22166230243 is a deficient number, since it is larger than the sum of its proper divisors (3020694557).

22166230243 is a wasteful number, since it uses less digits than its factorization.

22166230243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749162.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 22166230243 its reverse (34203266122), we get a palindrome (56369496365).

The spelling of 22166230243 in words is "twenty-two billion, one hundred sixty-six million, two hundred thirty thousand, two hundred forty-three".