422310521000 has 128 divisors (see below), whose sum is σ = 1031659200000. Its totient is φ = 161503372800.

The previous prime is 422310520889. The next prime is 422310521027. The reversal of 422310521000 is 125013224.

It is a super-2 number, since 2×422310521000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84476501 + ... + 84481499.

It is an arithmetic number, because the mean of its divisors is an integer number (8059837500).

Almost surely, 2^422310521000 is an apocalyptic number.

422310521000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422310521000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515829600000).

422310521000 is an abundant number, since it is smaller than the sum of its proper divisors (609348679000).

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

422310521000 is a wasteful number, since it uses less digits than its factorization.

422310521000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8716 (or 8702 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 422310521000 its reverse (125013224), we get a palindrome (422435534224).

The spelling of 422310521000 in words is "four hundred twenty-two billion, three hundred ten million, five hundred twenty-one thousand".