2000120220001 has 4 divisors (see below), whose sum is σ = 2018469946900. Its totient is φ = 1981770493104.

The previous prime is 2000120219983. The next prime is 2000120220017. The reversal of 2000120220001 is 1000220210002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1049887129600 + 950233090401 = 1024640^2 + 974799^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000120220001 - 2¹³ = 2000120211809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2000120220001.

It is not an unprimeable number, because it can be changed into a prime (2000120220071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9174863286 + ... + 9174863503.

It is an arithmetic number, because the mean of its divisors is an integer number (504617486725).

Almost surely, 2^{2000120220001} is an apocalyptic number.

It is an amenable number.

2000120220001 is a deficient number, since it is larger than the sum of its proper divisors (18349726899).

2000120220001 is a wasteful number, since it uses less digits than its factorization.

2000120220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18349726898.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2000120220001 its reverse (1000220210002), we get a palindrome (3000340430003).

Subtracting from 2000120220001 its reverse (1000220210002), we obtain a palindrome (999900009999).

The spelling of 2000120220001 in words is "two trillion, one hundred twenty million, two hundred twenty thousand, one".