2000121100001 has 32 divisors (see below), whose sum is σ = 2247759360000. Its totient is φ = 1768630609152.

The previous prime is 2000121099959. The next prime is 2000121100007. The reversal of 2000121100001 is 1000011210002.

It is not a de Polignac number, because 2000121100001 - 2²² = 2000116905697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000121100007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19682360 + ... + 19783718.

It is an arithmetic number, because the mean of its divisors is an integer number (70242480000).

Almost surely, 2^{2000121100001} is an apocalyptic number.

It is an amenable number.

2000121100001 is a deficient number, since it is larger than the sum of its proper divisors (247638259999).

2000121100001 is a wasteful number, since it uses less digits than its factorization.

2000121100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101901.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2000121100001 its reverse (1000011210002), we get a palindrome (3000132310003).

The spelling of 2000121100001 in words is "two trillion, one hundred twenty-one million, one hundred thousand, one".