22005330861 has 16 divisors (see below), whose sum is σ = 29632795200. Its totient is φ = 14524610688.

The previous prime is 22005330829. The next prime is 22005330889. The reversal of 22005330861 is 16803350022.

It is not a de Polignac number, because 22005330861 - 2⁵ = 22005330829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005430861) 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, 85135 + ... + 226403.

It is an arithmetic number, because the mean of its divisors is an integer number (1852049700).

Almost surely, 2^22005330861 is an apocalyptic number.

It is an amenable number.

22005330861 is a deficient number, since it is larger than the sum of its proper divisors (7627464339).

22005330861 is a wasteful number, since it uses less digits than its factorization.

22005330861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141788.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 22005330861 its reverse (16803350022), we get a palindrome (38808680883).

The spelling of 22005330861 in words is "twenty-two billion, five million, three hundred thirty thousand, eight hundred sixty-one".