2120422201 has 4 divisors (see below), whose sum is σ = 2120623092. Its totient is φ = 2120221312.

The previous prime is 2120422093. The next prime is 2120422219. The reversal of 2120422201 is 1022240212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1145484025 + 974938176 = 33845^2 + 31224^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120422201 - 2⁹ = 2120421689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120422301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83680 + ... + 106033.

It is an arithmetic number, because the mean of its divisors is an integer number (530155773).

Almost surely, 2^2120422201 is an apocalyptic number.

It is an amenable number.

2120422201 is a deficient number, since it is larger than the sum of its proper divisors (200891).

2120422201 is a wasteful number, since it uses less digits than its factorization.

2120422201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200890.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2120422201 is about 46048.0423145219. The cubic root of 2120422201 is about 1284.7169307895.

Adding to 2120422201 its reverse (1022240212), we get a palindrome (3142662413).

The spelling of 2120422201 in words is "two billion, one hundred twenty million, four hundred twenty-two thousand, two hundred one".