21422062186 has 16 divisors (see below), whose sum is σ = 36885318336. Its totient is φ = 9140438016.

The previous prime is 21422062159. The next prime is 21422062187. The reversal of 21422062186 is 68126022412.

It is not an unprimeable number, because it can be changed into a prime (21422062187) 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, 3367191 + ... + 3373546.

It is an arithmetic number, because the mean of its divisors is an integer number (2305332396).

Almost surely, 2^21422062186 is an apocalyptic number.

21422062186 is a deficient number, since it is larger than the sum of its proper divisors (15463256150).

21422062186 is a wasteful number, since it uses less digits than its factorization.

21422062186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740973.

The product of its (nonzero) digits is 18432, while the sum is 34.

Adding to 21422062186 its reverse (68126022412), we get a palindrome (89548084598).

The spelling of 21422062186 in words is "twenty-one billion, four hundred twenty-two million, sixty-two thousand, one hundred eighty-six".