422181841720 has 16 divisors (see below), whose sum is σ = 949909143960. Its totient is φ = 168872736672.

The previous prime is 422181841693. The next prime is 422181841729. The reversal of 422181841720 is 27148181224.

It is a super-2 number, since 2×422181841720² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 10554546043 = 422181841720 / (4 + 2 + 2 + 1 + 8 + 1 + 8 + 4 + 1 + 7 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422181841729) 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 3 ways as a sum of consecutive naturals, for example, 5277272982 + ... + 5277273061.

Almost surely, 2^422181841720 is an apocalyptic number.

422181841720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422181841720 is an abundant number, since it is smaller than the sum of its proper divisors (527727302240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422181841720 is a wasteful number, since it uses less digits than its factorization.

422181841720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554546054 (or 10554546050 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 422181841720 in words is "four hundred twenty-two billion, one hundred eighty-one million, eight hundred forty-one thousand, seven hundred twenty".