2236121 has 2 divisors, whose sum is σ = 2236122. Its totient is φ = 2236120.

The previous prime is 2236111. The next prime is 2236133. The reversal of 2236121 is 1216322.

2236121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 546121 = 1300^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2236121 - 2⁶ = 2236057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2236121.

It is not a weakly prime, because it can be changed into another prime (2236111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118060 + 1118061.

It is an arithmetic number, because the mean of its divisors is an integer number (1118061).

2^2236121 is an apocalyptic number.

It is an amenable number.

2236121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2236121 is an equidigital number, since it uses as much as digits as its factorization.

2236121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 2236121 is about 1495.3665102576. The cubic root of 2236121 is about 130.7670821846.

The spelling of 2236121 in words is "two million, two hundred thirty-six thousand, one hundred twenty-one".