20001117280022 has 4 divisors (see below), whose sum is σ = 30001675920036. Its totient is φ = 10000558640010.

The previous prime is 20001117279973. The next prime is 20001117280031. The reversal of 20001117280022 is 22008271110002.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20001117279973 and 20001117280000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000279320004 + ... + 5000279320007.

It is an arithmetic number, because the mean of its divisors is an integer number (7500418980009).

Almost surely, 2^{20001117280022} is an apocalyptic number.

20001117280022 is a deficient number, since it is larger than the sum of its proper divisors (10000558640014).

20001117280022 is a wasteful number, since it uses less digits than its factorization.

20001117280022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000558640013.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 20001117280022 its reverse (22008271110002), we get a palindrome (42009388390024).

The spelling of 20001117280022 in words is "twenty trillion, one billion, one hundred seventeen million, two hundred eighty thousand, twenty-two".