10310221 has 8 divisors (see below), whose sum is σ = 10454400. Its totient is φ = 10167360.

The previous prime is 10310213. The next prime is 10310231. The reversal of 10310221 is 12201301.

10310221 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10310221 - 2³ = 10310213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10310198 and 10310207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10310231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42661 + ... + 42901.

It is an arithmetic number, because the mean of its divisors is an integer number (1306800).

Almost surely, 2^10310221 is an apocalyptic number.

It is an amenable number.

10310221 is a deficient number, since it is larger than the sum of its proper divisors (144179).

10310221 is a wasteful number, since it uses less digits than its factorization.

10310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 10310221 is about 3210.9532852410. The cubic root of 10310221 is about 217.6486569054.

Adding to 10310221 its reverse (12201301), we get a palindrome (22511522).

The spelling of 10310221 in words is "ten million, three hundred ten thousand, two hundred twenty-one".