102322310221 has 4 divisors (see below), whose sum is σ = 102645093852. Its totient is φ = 101999526592.

The previous prime is 102322310179. The next prime is 102322310227. The reversal of 102322310221 is 122013223201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15407015625 + 86915294596 = 124125^2 + 294814^2 .

It is a cyclic number.

It is not a de Polignac number, because 102322310221 - 2¹⁷ = 102322179149 is a prime.

It is a super-2 number, since 2×102322310221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102322310227) 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, 161391340 + ... + 161391973.

It is an arithmetic number, because the mean of its divisors is an integer number (25661273463).

Almost surely, 2^102322310221 is an apocalyptic number.

It is an amenable number.

102322310221 is a deficient number, since it is larger than the sum of its proper divisors (322783631).

102322310221 is an equidigital number, since it uses as much as digits as its factorization.

102322310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322783630.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102322310221 its reverse (122013223201), we get a palindrome (224335533422).

The spelling of 102322310221 in words is "one hundred two billion, three hundred twenty-two million, three hundred ten thousand, two hundred twenty-one".