221443046085 has 32 divisors (see below), whose sum is σ = 357608350080. Its totient is φ = 117007711488.

The previous prime is 221443046051. The next prime is 221443046087. The reversal of 221443046085 is 580640344122.

221443046085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221443046085 - 2⁹ = 221443045573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221443046087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632211 + ... + 917919.

It is an arithmetic number, because the mean of its divisors is an integer number (11175260940).

Almost surely, 2^221443046085 is an apocalyptic number.

It is an amenable number.

221443046085 is a deficient number, since it is larger than the sum of its proper divisors (136165303995).

221443046085 is a wasteful number, since it uses less digits than its factorization.

221443046085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286197.

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 221443046085 in words is "two hundred twenty-one billion, four hundred forty-three million, forty-six thousand, eighty-five".