40422166221 has 16 divisors (see below), whose sum is σ = 54131995008. Its totient is φ = 26830425600.

The previous prime is 40422166163. The next prime is 40422166231. The reversal of 40422166221 is 12266122404.

It is not a de Polignac number, because 40422166221 - 2⁶ = 40422166157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40422166231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797385 + ... + 846561.

It is an arithmetic number, because the mean of its divisors is an integer number (3383249688).

Almost surely, 2^40422166221 is an apocalyptic number.

It is an amenable number.

40422166221 is a deficient number, since it is larger than the sum of its proper divisors (13709828787).

40422166221 is a wasteful number, since it uses less digits than its factorization.

40422166221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50372.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 40422166221 its reverse (12266122404), we get a palindrome (52688288625).

The spelling of 40422166221 in words is "forty billion, four hundred twenty-two million, one hundred sixty-six thousand, two hundred twenty-one".