2120121000001 has 8 divisors (see below), whose sum is σ = 2147149344384. Its totient is φ = 2093256962160.

The previous prime is 2120120999993. The next prime is 2120121000047. The reversal of 2120121000001 is 1000001210212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120121000001 - 2³ = 2120120999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120121000061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41050665 + ... + 41102278.

It is an arithmetic number, because the mean of its divisors is an integer number (268393668048).

Almost surely, 2^{2120121000001} is an apocalyptic number.

It is an amenable number.

2120121000001 is a deficient number, since it is larger than the sum of its proper divisors (27028344383).

2120121000001 is a wasteful number, since it uses less digits than its factorization.

2120121000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82153271.

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

Adding to 2120121000001 its reverse (1000001210212), we get a palindrome (3120122210213).

The spelling of 2120121000001 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one", and thus it is an aban number.