2331220201 has 2 divisors, whose sum is σ = 2331220202. Its totient is φ = 2331220200.

The previous prime is 2331220193. The next prime is 2331220249. The reversal of 2331220201 is 1020221332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2330572176 + 648025 = 48276^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331220201 - 2³ = 2331220193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2331220501) 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 as a sum of consecutive naturals, namely, 1165610100 + 1165610101.

It is an arithmetic number, because the mean of its divisors is an integer number (1165610101).

Almost surely, 2^2331220201 is an apocalyptic number.

It is an amenable number.

2331220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331220201 is an equidigital number, since it uses as much as digits as its factorization.

2331220201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2331220201 is about 48282.7112018370. The cubic root of 2331220201 is about 1325.9518876809.

Adding to 2331220201 its reverse (1020221332), we get a palindrome (3351441533).

The spelling of 2331220201 in words is "two billion, three hundred thirty-one million, two hundred twenty thousand, two hundred one".