22171771232 has 96 divisors (see below), whose sum is σ = 49644252000. Its totient is φ = 9662865408.

The previous prime is 22171771201. The next prime is 22171771267. The reversal of 22171771232 is 23217717122.

It is a junction number, because it is equal to n+sod(n) for n = 22171771192 and 22171771201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2501144 + ... + 2509992.

It is an arithmetic number, because the mean of its divisors is an integer number (517127625).

Almost surely, 2^22171771232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22171771232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24822126000).

22171771232 is an abundant number, since it is smaller than the sum of its proper divisors (27472480768).

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

22171771232 is a wasteful number, since it uses less digits than its factorization.

22171771232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9208 (or 9200 counting only the distinct ones).

The product of its digits is 16464, while the sum is 35.

The spelling of 22171771232 in words is "twenty-two billion, one hundred seventy-one million, seven hundred seventy-one thousand, two hundred thirty-two".