422212457 has 2 divisors, whose sum is σ = 422212458. Its totient is φ = 422212456.

The previous prime is 422212411. The next prime is 422212463. The reversal of 422212457 is 754212224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372142681 + 50069776 = 19291^2 + 7076^2 .

It is a cyclic number.

It is not a de Polignac number, because 422212457 - 2¹⁸ = 421950313 is a prime.

It is not a weakly prime, because it can be changed into another prime (422212057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211106228 + 211106229.

It is an arithmetic number, because the mean of its divisors is an integer number (211106229).

Almost surely, 2^422212457 is an apocalyptic number.

It is an amenable number.

422212457 is a deficient number, since it is larger than the sum of its proper divisors (1).

422212457 is an equidigital number, since it uses as much as digits as its factorization.

422212457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 29.

The square root of 422212457 is about 20547.8090559553. The cubic root of 422212457 is about 750.1999212225.

The spelling of 422212457 in words is "four hundred twenty-two million, two hundred twelve thousand, four hundred fifty-seven".