12223041421 has 2 divisors, whose sum is σ = 12223041422. Its totient is φ = 12223041420.

The previous prime is 12223041301. The next prime is 12223041433. The reversal of 12223041421 is 12414032221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9136683396 + 3086358025 = 95586^2 + 55555^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223041421 - 2¹⁹ = 12222517133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12223041392 and 12223041401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223041521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111520710 + 6111520711.

It is an arithmetic number, because the mean of its divisors is an integer number (6111520711).

Almost surely, 2^12223041421 is an apocalyptic number.

It is an amenable number.

12223041421 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223041421 is an equidigital number, since it uses as much as digits as its factorization.

12223041421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12223041421 its reverse (12414032221), we get a palindrome (24637073642).

The spelling of 12223041421 in words is "twelve billion, two hundred twenty-three million, forty-one thousand, four hundred twenty-one".