10221131 has 8 divisors (see below), whose sum is σ = 11293344. Its totient is φ = 9201280.

The previous prime is 10221091. The next prime is 10221149. The reversal of 10221131 is 13112201.

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 10221131 - 2⁶ = 10221067 is a prime.

It is a super-2 number, since 2×10221131² = 208943037838322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221151) 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, 12680 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (1411668).

Almost surely, 2^10221131 is an apocalyptic number.

10221131 is a deficient number, since it is larger than the sum of its proper divisors (1072213).

10221131 is a wasteful number, since it uses less digits than its factorization.

10221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26181.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 10221131 is about 3197.0503593156. The cubic root of 10221131 is about 217.0199462082.

Adding to 10221131 its reverse (13112201), we get a palindrome (23333332).

The spelling of 10221131 in words is "ten million, two hundred twenty-one thousand, one hundred thirty-one".