2121210201 has 32 divisors (see below), whose sum is σ = 3115840896. Its totient is φ = 1272960000.

The previous prime is 2121210187. The next prime is 2121210209. The reversal of 2121210201 is 1020121212.

It is not a de Polignac number, because 2121210201 - 2¹¹ = 2121208153 is a prime.

It is a super-3 number, since 3×2121210201³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121210209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2077071 + ... + 2078091.

It is an arithmetic number, because the mean of its divisors is an integer number (97370028).

Almost surely, 2^2121210201 is an apocalyptic number.

It is an amenable number.

2121210201 is a deficient number, since it is larger than the sum of its proper divisors (994630695).

2121210201 is a wasteful number, since it uses less digits than its factorization.

2121210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2121210201 is about 46056.5978009666. The cubic root of 2121210201 is about 1284.8760550056.

Adding to 2121210201 its reverse (1020121212), we get a palindrome (3141331413).

It can be divided in two parts, 21212 and 10201, that multiplied together give a palindrome (216383612).

The spelling of 2121210201 in words is "two billion, one hundred twenty-one million, two hundred ten thousand, two hundred one".