221421324236324 has 48 divisors (see below), whose sum is σ = 396259521338688. Its totient is φ = 108232580671488.

The previous prime is 221421324236207. The next prime is 221421324236347. The reversal of 221421324236324 is 423632423124122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210508199 + ... + 211557425.

It is an arithmetic number, because the mean of its divisors is an integer number (8255406694556).

Almost surely, 2^{221421324236324} is an apocalyptic number.

It is an amenable number.

221421324236324 is a deficient number, since it is larger than the sum of its proper divisors (174838197102364).

221421324236324 is a wasteful number, since it uses less digits than its factorization.

221421324236324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055964 (or 1055962 counting only the distinct ones).

The product of its digits is 663552, while the sum is 41.

The spelling of 221421324236324 in words is "two hundred twenty-one trillion, four hundred twenty-one billion, three hundred twenty-four million, two hundred thirty-six thousand, three hundred twenty-four".