221421327266600 has 48 divisors (see below), whose sum is σ = 514807620516000. Its totient is φ = 88568008821440.

The previous prime is 221421327266591. The next prime is 221421327266611. The reversal of 221421327266600 is 6662723124122.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31683917 + ... + 38035683.

It is an arithmetic number, because the mean of its divisors is an integer number (10725158760750).

Almost surely, 2^{221421327266600} is an apocalyptic number.

221421327266600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221421327266600 is an abundant number, since it is smaller than the sum of its proper divisors (293386293249400).

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

221421327266600 is a wasteful number, since it uses less digits than its factorization.

221421327266600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526082 (or 6526073 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 221421327266600 in words is "two hundred twenty-one trillion, four hundred twenty-one billion, three hundred twenty-seven million, two hundred sixty-six thousand, six hundred".