2243634121 has 2 divisors, whose sum is σ = 2243634122. Its totient is φ = 2243634120.

The previous prime is 2243634079. The next prime is 2243634131. The reversal of 2243634121 is 1214363422.

It is a happy number.

2243634121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2110116096 + 133518025 = 45936^2 + 11555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243634121 - 2¹¹ = 2243632073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2243634121.

It is not a weakly prime, because it can be changed into another prime (2243634131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121817060 + 1121817061.

It is an arithmetic number, because the mean of its divisors is an integer number (1121817061).

Almost surely, 2^2243634121 is an apocalyptic number.

It is an amenable number.

2243634121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243634121 is an equidigital number, since it uses as much as digits as its factorization.

2243634121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

The square root of 2243634121 is about 47367.0151160066. The cubic root of 2243634121 is about 1309.1337281184.

Adding to 2243634121 its reverse (1214363422), we get a palindrome (3457997543).

It can be divided in two parts, 224363 and 4121, that added together give a square (228484 = 478²).

The spelling of 2243634121 in words is "two billion, two hundred forty-three million, six hundred thirty-four thousand, one hundred twenty-one".