10221031 has 8 divisors (see below), whose sum is σ = 10799280. Its totient is φ = 9646848.

The previous prime is 10221007. The next prime is 10221037. The reversal of 10221031 is 13012201.

10221031 is digitally balanced in base 3, because in such base 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 a de Polignac number, because none of the positive numbers 2^k-10221031 is a prime.

It is a super-2 number, since 2×10221031² = 208938949405922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220999 and 10221017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5175 + ... + 6871.

It is an arithmetic number, because the mean of its divisors is an integer number (1349910).

Almost surely, 2^10221031 is an apocalyptic number.

10221031 is a deficient number, since it is larger than the sum of its proper divisors (578249).

10221031 is a wasteful number, since it uses less digits than its factorization.

10221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033.

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

The square root of 10221031 is about 3197.0347198615. The cubic root of 10221031 is about 217.0192384566.

Adding to 10221031 its reverse (13012201), we get a palindrome (23233232).

The spelling of 10221031 in words is "ten million, two hundred twenty-one thousand, thirty-one".