20001132222001 has 32 divisors (see below), whose sum is σ = 24087466967040. Its totient is φ = 16224006901824.

The previous prime is 20001132221953. The next prime is 20001132222007. The reversal of 20001132222001 is 10022223110002.

It is a happy number.

It is not a de Polignac number, because 20001132222001 - 2²³ = 20001123833393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001132222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1574514016 + ... + 1574526718.

It is an arithmetic number, because the mean of its divisors is an integer number (752733342720).

Almost surely, 2^{20001132222001} is an apocalyptic number.

It is an amenable number.

20001132222001 is a deficient number, since it is larger than the sum of its proper divisors (4086334745039).

20001132222001 is a wasteful number, since it uses less digits than its factorization.

20001132222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24565.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20001132222001 its reverse (10022223110002), we get a palindrome (30023355332003).

The spelling of 20001132222001 in words is "twenty trillion, one billion, one hundred thirty-two million, two hundred twenty-two thousand, one".