102301221 has 16 divisors (see below), whose sum is σ = 151326720. Its totient is φ = 60948720.

The previous prime is 102301219. The next prime is 102301229. The reversal of 102301221 is 122103201.

It is not a de Polignac number, because 102301221 - 2¹ = 102301219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102301197 and 102301206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102301229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24325 + ... + 28218.

It is an arithmetic number, because the mean of its divisors is an integer number (9457920).

Almost surely, 2^102301221 is an apocalyptic number.

102301221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102301221 is a deficient number, since it is larger than the sum of its proper divisors (49025499).

102301221 is a wasteful number, since it uses less digits than its factorization.

102301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52616.

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

The square root of 102301221 is about 10114.4066064204. The cubic root of 102301221 is about 467.6923566189.

Adding to 102301221 its reverse (122103201), we get a palindrome (224404422).

The spelling of 102301221 in words is "one hundred two million, three hundred one thousand, two hundred twenty-one".