2121441201 has 12 divisors (see below), whose sum is σ = 3342877200. Its totient is φ = 1285721880.

The previous prime is 2121441199. The next prime is 2121441211. The reversal of 2121441201 is 1021441212.

2121441201 is a `hidden beast` number, since 2 + 1 + 21 + 441 + 201 = 666.

It is not a de Polignac number, because 2121441201 - 2¹ = 2121441199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2121441211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10714251 + ... + 10714448.

It is an arithmetic number, because the mean of its divisors is an integer number (278573100).

Almost surely, 2^2121441201 is an apocalyptic number.

It is an amenable number.

2121441201 is a deficient number, since it is larger than the sum of its proper divisors (1221435999).

2121441201 is a wasteful number, since it uses less digits than its factorization.

2121441201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21428716 (or 21428713 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2121441201 is about 46059.1055167162. The cubic root of 2121441201 is about 1284.9226943557.

Adding to 2121441201 its reverse (1021441212), we get a palindrome (3142882413).

The spelling of 2121441201 in words is "two billion, one hundred twenty-one million, four hundred forty-one thousand, two hundred one".