2121102201 has 16 divisors (see below), whose sum is σ = 2889432000. Its totient is φ = 1383748608.

The previous prime is 2121102197. The next prime is 2121102227. The reversal of 2121102201 is 1022011212.

It is not a de Polignac number, because 2121102201 - 2² = 2121102197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121102001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15051 + ... + 66848.

It is an arithmetic number, because the mean of its divisors is an integer number (180589500).

Almost surely, 2^2121102201 is an apocalyptic number.

It is an amenable number.

2121102201 is a deficient number, since it is larger than the sum of its proper divisors (768329799).

2121102201 is an equidigital number, since it uses as much as digits as its factorization.

2121102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82088.

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

The square root of 2121102201 is about 46055.4253155912. The cubic root of 2121102201 is about 1284.8542484336.

Adding to 2121102201 its reverse (1022011212), we get a palindrome (3143113413).

The spelling of 2121102201 in words is "two billion, one hundred twenty-one million, one hundred two thousand, two hundred one".