2242321421 has 2 divisors, whose sum is σ = 2242321422. Its totient is φ = 2242321420.

The previous prime is 2242321409. The next prime is 2242321427. The reversal of 2242321421 is 1241232422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2193517225 + 48804196 = 46835^2 + 6986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242321421 - 2¹⁸ = 2242059277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242321427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121160710 + 1121160711.

It is an arithmetic number, because the mean of its divisors is an integer number (1121160711).

Almost surely, 2^2242321421 is an apocalyptic number.

It is an amenable number.

2242321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242321421 is an equidigital number, since it uses as much as digits as its factorization.

2242321421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 23.

The square root of 2242321421 is about 47353.1563995474. The cubic root of 2242321421 is about 1308.8783633823.

Adding to 2242321421 its reverse (1241232422), we get a palindrome (3483553843).

The spelling of 2242321421 in words is "two billion, two hundred forty-two million, three hundred twenty-one thousand, four hundred twenty-one".