22131017 has 2 divisors, whose sum is σ = 22131018. Its totient is φ = 22131016.

The previous prime is 22131001. The next prime is 22131049. The reversal of 22131017 is 71013122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17131321 + 4999696 = 4139^2 + 2236^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131017 - 2⁴ = 22131001 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22130986 and 22131004.

It is not a weakly prime, because it can be changed into another prime (22131097) 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 as a sum of consecutive naturals, namely, 11065508 + 11065509.

It is an arithmetic number, because the mean of its divisors is an integer number (11065509).

Almost surely, 2^22131017 is an apocalyptic number.

It is an amenable number.

22131017 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131017 is an equidigital number, since it uses as much as digits as its factorization.

22131017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 22131017 is about 4704.3614869608. The cubic root of 22131017 is about 280.7590670455.

Adding to 22131017 its reverse (71013122), we get a palindrome (93144139).

The spelling of 22131017 in words is "twenty-two million, one hundred thirty-one thousand, seventeen".