22185420463 has 2 divisors, whose sum is σ = 22185420464. Its totient is φ = 22185420462.

The previous prime is 22185420449. The next prime is 22185420487. The reversal of 22185420463 is 36402458122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22185420463 - 2²¹ = 22183323311 is a prime.

It is a super-2 number, since 2×22185420463² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22185420163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11092710231 + 11092710232.

It is an arithmetic number, because the mean of its divisors is an integer number (11092710232).

Almost surely, 2^22185420463 is an apocalyptic number.

22185420463 is a deficient number, since it is larger than the sum of its proper divisors (1).

22185420463 is an equidigital number, since it uses as much as digits as its factorization.

22185420463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 22185420463 its reverse (36402458122), we get a palindrome (58587878585).

The spelling of 22185420463 in words is "twenty-two billion, one hundred eighty-five million, four hundred twenty thousand, four hundred sixty-three".