102310221 has 8 divisors (see below), whose sum is σ = 146907040. Its totient is φ = 62960112.

The previous prime is 102310207. The next prime is 102310223. The reversal of 102310221 is 122013201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102310221 - 2¹⁴ = 102293837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102310197 and 102310206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102310223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311631 + ... + 1311708.

It is an arithmetic number, because the mean of its divisors is an integer number (18363380).

Almost surely, 2^102310221 is an apocalyptic number.

It is an amenable number.

102310221 is a deficient number, since it is larger than the sum of its proper divisors (44596819).

102310221 is a wasteful number, since it uses less digits than its factorization.

102310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623355.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102310221 is about 10114.8515065719. The cubic root of 102310221 is about 467.7060713714.

Adding to 102310221 its reverse (122013201), we get a palindrome (224323422).

The spelling of 102310221 in words is "one hundred two million, three hundred ten thousand, two hundred twenty-one".