2121100120201 has 8 divisors (see below), whose sum is σ = 2144586273984. Its totient is φ = 2097724490160.

The previous prime is 2121100120187. The next prime is 2121100120207. The reversal of 2121100120201 is 1020210011212.

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 2121100120201 - 2¹¹ = 2121100118153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121100120207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27592341 + ... + 27669106.

It is an arithmetic number, because the mean of its divisors is an integer number (268073284248).

Almost surely, 2^{2121100120201} is an apocalyptic number.

It is an amenable number.

2121100120201 is a deficient number, since it is larger than the sum of its proper divisors (23486153783).

2121100120201 is a wasteful number, since it uses less digits than its factorization.

2121100120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55261871.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2121100120201 its reverse (1020210011212), we get a palindrome (3141310131413).

The spelling of 2121100120201 in words is "two trillion, one hundred twenty-one billion, one hundred million, one hundred twenty thousand, two hundred one".