2121000011201 has 4 divisors (see below), whose sum is σ = 2121021027504. Its totient is φ = 2120978994900.

The previous prime is 2121000011183. The next prime is 2121000011213. The reversal of 2121000011201 is 1021100001212.

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 a de Polignac number, because none of the positive numbers 2^k-2121000011201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121000011701) 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, 10356035 + ... + 10558856.

It is an arithmetic number, because the mean of its divisors is an integer number (530255256876).

Almost surely, 2^{2121000011201} is an apocalyptic number.

It is an amenable number.

2121000011201 is a deficient number, since it is larger than the sum of its proper divisors (21016303).

2121000011201 is a wasteful number, since it uses less digits than its factorization.

2121000011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21016302.

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

Adding to 2121000011201 its reverse (1021100001212), we get a palindrome (3142100012413).

The spelling of 2121000011201 in words is "two trillion, one hundred twenty-one billion, eleven thousand, two hundred one".