20201000122107 has 24 divisors (see below), whose sum is σ = 33348379315680. Its totient is φ = 11543187519360.

The previous prime is 20201000122063. The next prime is 20201000122187. The reversal of 20201000122107 is 70122100010202.

It is a happy number.

It is not a de Polignac number, because 20201000122107 - 2⁷ = 20201000121979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20201000122107.

It is not an unprimeable number, because it can be changed into a prime (20201000122187) 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, 286882 + ... + 6362727.

It is an arithmetic number, because the mean of its divisors is an integer number (1389515804820).

Almost surely, 2^{20201000122107} is an apocalyptic number.

20201000122107 is a deficient number, since it is larger than the sum of its proper divisors (13147379193573).

20201000122107 is a wasteful number, since it uses less digits than its factorization.

20201000122107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6697843 (or 6697840 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

Adding to 20201000122107 its reverse (70122100010202), we get a palindrome (90323100132309).

The spelling of 20201000122107 in words is "twenty trillion, two hundred one billion, one hundred twenty-two thousand, one hundred seven".