2203121 has 2 divisors, whose sum is σ = 2203122. Its totient is φ = 2203120.

The previous prime is 2203111. The next prime is 2203133. The reversal of 2203121 is 1213022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 1079521 = 1060^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2203121 - 2⁶ = 2203057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2203111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101560 + 1101561.

It is an arithmetic number, because the mean of its divisors is an integer number (1101561).

2^2203121 is an apocalyptic number.

It is an amenable number.

2203121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203121 is an equidigital number, since it uses as much as digits as its factorization.

2203121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2203121 is about 1484.2914134361. The cubic root of 2203121 is about 130.1206178356.

Adding to 2203121 its reverse (1213022), we get a palindrome (3416143).

Subtracting from 2203121 its reverse (1213022), we obtain a palindrome (990099).

The spelling of 2203121 in words is "two million, two hundred three thousand, one hundred twenty-one".