20422001440205 has 24 divisors (see below), whose sum is σ = 26033925714720. Its totient is φ = 15375872528640.

The previous prime is 20422001440199. The next prime is 20422001440207. The reversal of 20422001440205 is 50204410022402.

It is not a de Polignac number, because 20422001440205 - 2¹⁶ = 20422001374669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422001440207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32943806 + ... + 33557984.

It is an arithmetic number, because the mean of its divisors is an integer number (1084746904780).

Almost surely, 2^{20422001440205} is an apocalyptic number.

It is an amenable number.

20422001440205 is a deficient number, since it is larger than the sum of its proper divisors (5611924274515).

20422001440205 is a wasteful number, since it uses less digits than its factorization.

20422001440205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637229 (or 637212 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 20422001440205 its reverse (50204410022402), we get a palindrome (70626411462607).

The spelling of 20422001440205 in words is "twenty trillion, four hundred twenty-two billion, one million, four hundred forty thousand, two hundred five".