221214301989 has 4 divisors (see below), whose sum is σ = 294952402656. Its totient is φ = 147476201324.

The previous prime is 221214301937. The next prime is 221214302011. The reversal of 221214301989 is 989103412122.

221214301989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221214301989 - 2¹¹ = 221214299941 is a prime.

It is a super-2 number, since 2×221214301989² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221214301989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221214305989) 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 3 ways as a sum of consecutive naturals, for example, 36869050329 + ... + 36869050334.

It is an arithmetic number, because the mean of its divisors is an integer number (73738100664).

Almost surely, 2^221214301989 is an apocalyptic number.

It is an amenable number.

221214301989 is a deficient number, since it is larger than the sum of its proper divisors (73738100667).

221214301989 is an equidigital number, since it uses as much as digits as its factorization.

221214301989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73738100666.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 221214301989 in words is "two hundred twenty-one billion, two hundred fourteen million, three hundred one thousand, nine hundred eighty-nine".