2000120121001 has 4 divisors (see below), whose sum is σ = 2004295737600. Its totient is φ = 1995944504404.

The previous prime is 2000120120951. The next prime is 2000120121011. The reversal of 2000120121001 is 1001210210002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000120121001 - 2⁹ = 2000120120489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000120121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087807581 + ... + 2087808538.

It is an arithmetic number, because the mean of its divisors is an integer number (501073934400).

Almost surely, 2^{2000120121001} is an apocalyptic number.

It is an amenable number.

2000120121001 is a deficient number, since it is larger than the sum of its proper divisors (4175616599).

2000120121001 is an equidigital number, since it uses as much as digits as its factorization.

2000120121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175616598.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2000120121001 its reverse (1001210210002), we get a palindrome (3001330331003).

The spelling of 2000120121001 in words is "two trillion, one hundred twenty million, one hundred twenty-one thousand, one".