120121100200001 has 4 divisors (see below), whose sum is σ = 120134436625152. Its totient is φ = 120107763774852.

The previous prime is 120121100199949. The next prime is 120121100200009. The reversal of 120121100200001 is 100002001121021.

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 120121100200001 - 2²² = 120121096005697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121100200009) 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, 6668199065 + ... + 6668217078.

It is an arithmetic number, because the mean of its divisors is an integer number (30033609156288).

Almost surely, 2^{120121100200001} is an apocalyptic number.

It is an amenable number.

120121100200001 is a deficient number, since it is larger than the sum of its proper divisors (13336425151).

120121100200001 is an equidigital number, since it uses as much as digits as its factorization.

120121100200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336425150.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120121100200001 its reverse (100002001121021), we get a palindrome (220123101321022).

The spelling of 120121100200001 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred million, two hundred thousand, one".