221001481360 has 40 divisors (see below), whose sum is σ = 560540123136. Its totient is φ = 80364174720.

The previous prime is 221001481343. The next prime is 221001481381. The reversal of 221001481360 is 63184100122.

221001481360 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125568144 + ... + 125569903.

Almost surely, 2^221001481360 is an apocalyptic number.

221001481360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221001481360 is an abundant number, since it is smaller than the sum of its proper divisors (339538641776).

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

221001481360 is a wasteful number, since it uses less digits than its factorization.

221001481360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251138071 (or 251138065 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 221001481360 its reverse (63184100122), we get a palindrome (284185581482).

The spelling of 221001481360 in words is "two hundred twenty-one billion, one million, four hundred eighty-one thousand, three hundred sixty".