221381162080 has 48 divisors (see below), whose sum is σ = 563244769584. Its totient is φ = 81740736000.

The previous prime is 221381162027. The next prime is 221381162081. The reversal of 221381162080 is 80261183122.

It is a happy number.

221381162080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221381162081) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 53214546 + ... + 53218705.

It is an arithmetic number, because the mean of its divisors is an integer number (11734266033).

Almost surely, 2^221381162080 is an apocalyptic number.

221381162080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221381162080 is an abundant number, since it is smaller than the sum of its proper divisors (341863607504).

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

221381162080 is a wasteful number, since it uses less digits than its factorization.

221381162080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106433279 (or 106433271 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 221381162080 in words is "two hundred twenty-one billion, three hundred eighty-one million, one hundred sixty-two thousand, eighty".