102243343221 has 6 divisors (see below), whose sum is σ = 147684829110. Its totient is φ = 68162228808.

The previous prime is 102243343193. The next prime is 102243343231. The reversal of 102243343221 is 122343342201.

102243343221 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 4 + 334 + 322 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101974842225 + 268500996 = 319335^2 + 16386^2 .

It is not a de Polignac number, because 102243343221 - 2¹¹ = 102243341173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102243343231) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5680185726 + ... + 5680185743.

It is an arithmetic number, because the mean of its divisors is an integer number (24614138185).

Almost surely, 2^102243343221 is an apocalyptic number.

It is an amenable number.

102243343221 is a deficient number, since it is larger than the sum of its proper divisors (45441485889).

102243343221 is a wasteful number, since it uses less digits than its factorization.

102243343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11360371475 (or 11360371472 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 102243343221 its reverse (122343342201), we get a palindrome (224586685422).

The spelling of 102243343221 in words is "one hundred two billion, two hundred forty-three million, three hundred forty-three thousand, two hundred twenty-one".