1200100120001 has 8 divisors (see below), whose sum is σ = 1257039907200. Its totient is φ = 1143557126272.

The previous prime is 1200100119973. The next prime is 1200100120003. The reversal of 1200100120001 is 1000210010021.

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 1200100120001 - 2³⁴ = 1182920250817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200100120003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99192176 + ... + 99204273.

It is an arithmetic number, because the mean of its divisors is an integer number (157129988400).

Almost surely, 2^{1200100120001} is an apocalyptic number.

It is an amenable number.

1200100120001 is a deficient number, since it is larger than the sum of its proper divisors (56939787199).

1200100120001 is a wasteful number, since it uses less digits than its factorization.

1200100120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198396735.

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

Adding to 1200100120001 its reverse (1000210010021), we get a palindrome (2200310130022).

The spelling of 1200100120001 in words is "one trillion, two hundred billion, one hundred million, one hundred twenty thousand, one".