422322401491 has 2 divisors, whose sum is σ = 422322401492. Its totient is φ = 422322401490.

The previous prime is 422322401419. The next prime is 422322401497. The reversal of 422322401491 is 194104223224.

Together with previous prime (422322401419) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422322401491 - 2⁷ = 422322401363 is a prime.

It is a super-2 number, since 2×422322401491² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422322401497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211161200745 + 211161200746.

It is an arithmetic number, because the mean of its divisors is an integer number (211161200746).

Almost surely, 2^422322401491 is an apocalyptic number.

422322401491 is a deficient number, since it is larger than the sum of its proper divisors (1).

422322401491 is an equidigital number, since it uses as much as digits as its factorization.

422322401491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 422322401491 in words is "four hundred twenty-two billion, three hundred twenty-two million, four hundred one thousand, four hundred ninety-one".