22216124866 has 16 divisors (see below), whose sum is σ = 35947324728. Its totient is φ = 10236528000.

The previous prime is 22216124849. The next prime is 22216124869. The reversal of 22216124866 is 66842161222.

It can be written as a sum of positive squares in 4 ways, for example, as 21132727641 + 1083397225 = 145371^2 + 32915^2 .

It is not an unprimeable number, because it can be changed into a prime (22216124869) 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, 695245 + ... + 726496.

Almost surely, 2^22216124866 is an apocalyptic number.

22216124866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22216124866 is a deficient number, since it is larger than the sum of its proper divisors (13731199862).

22216124866 is a wasteful number, since it uses less digits than its factorization.

22216124866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422357.

The product of its digits is 110592, while the sum is 40.

The spelling of 22216124866 in words is "twenty-two billion, two hundred sixteen million, one hundred twenty-four thousand, eight hundred sixty-six".