222024341220421 has 2 divisors, whose sum is σ = 222024341220422. Its totient is φ = 222024341220420.

The previous prime is 222024341220403. The next prime is 222024341220427. The reversal of 222024341220421 is 124022143420222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117883438767396 + 104140902453025 = 10857414^2 + 10204945^2 .

It is a cyclic number.

It is not a de Polignac number, because 222024341220421 - 2³⁹ = 221474585406533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222024341220427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111012170610210 + 111012170610211.

It is an arithmetic number, because the mean of its divisors is an integer number (111012170610211).

Almost surely, 2^{222024341220421} is an apocalyptic number.

It is an amenable number.

222024341220421 is a deficient number, since it is larger than the sum of its proper divisors (1).

222024341220421 is an equidigital number, since it uses as much as digits as its factorization.

222024341220421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 222024341220421 its reverse (124022143420222), we get a palindrome (346046484640643).

The spelling of 222024341220421 in words is "two hundred twenty-two trillion, twenty-four billion, three hundred forty-one million, two hundred twenty thousand, four hundred twenty-one".