422246202642225 has 72 divisors (see below), whose sum is σ = 816124801669632. Its totient is φ = 207451682121600.

The previous prime is 422246202642221. The next prime is 422246202642233. The reversal of 422246202642225 is 522246202642224.

It is not a de Polignac number, because 422246202642225 - 2² = 422246202642221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (422246202642221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 145567569 + ... + 148439918.

It is an arithmetic number, because the mean of its divisors is an integer number (11335066689856).

Almost surely, 2^{422246202642225} is an apocalyptic number.

422246202642225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422246202642225 is a deficient number, since it is larger than the sum of its proper divisors (393878599027407).

422246202642225 is a wasteful number, since it uses less digits than its factorization.

422246202642225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294008007 (or 294007999 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 45.

Subtracting 422246202642225 from its reverse (522246202642224), we obtain a palindrome (99999999999999).

The spelling of 422246202642225 in words is "four hundred twenty-two trillion, two hundred forty-six billion, two hundred two million, six hundred forty-two thousand, two hundred twenty-five".