121200002002001 has 8 divisors (see below), whose sum is σ = 130772645203200. Its totient is φ = 111663011104272.

The previous prime is 121200002001983. The next prime is 121200002002063. The reversal of 121200002002001 is 100200200002121.

It is a happy number.

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 121200002002001 - 2²⁶ = 121199934893137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200002002301) 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, 8913068801 + ... + 8913082398.

It is an arithmetic number, because the mean of its divisors is an integer number (16346580650400).

Almost surely, 2^{121200002002001} is an apocalyptic number.

It is an amenable number.

121200002002001 is a deficient number, since it is larger than the sum of its proper divisors (9572643201199).

121200002002001 is a wasteful number, since it uses less digits than its factorization.

121200002002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17826151735.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121200002002001 its reverse (100200200002121), we get a palindrome (221400202004122).

The spelling of 121200002002001 in words is "one hundred twenty-one trillion, two hundred billion, two million, two thousand, one".