422244030421 has 2 divisors, whose sum is σ = 422244030422. Its totient is φ = 422244030420.

The previous prime is 422244030389. The next prime is 422244030443. The reversal of 422244030421 is 124030442224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259375285521 + 162868744900 = 509289^2 + 403570^2 .

It is a cyclic number.

It is not a de Polignac number, because 422244030421 - 2⁵ = 422244030389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422244030421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422244030721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211122015210 + 211122015211.

It is an arithmetic number, because the mean of its divisors is an integer number (211122015211).

Almost surely, 2^422244030421 is an apocalyptic number.

It is an amenable number.

422244030421 is a deficient number, since it is larger than the sum of its proper divisors (1).

422244030421 is an equidigital number, since it uses as much as digits as its factorization.

422244030421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 422244030421 its reverse (124030442224), we get a palindrome (546274472645).

The spelling of 422244030421 in words is "four hundred twenty-two billion, two hundred forty-four million, thirty thousand, four hundred twenty-one".