22221017 has 16 divisors (see below), whose sum is σ = 28234752. Its totient is φ = 17012160.

The previous prime is 22221007. The next prime is 22221029. The reversal of 22221017 is 71012222.

It is a cyclic number.

It is not a de Polignac number, because 22221017 - 2⁶ = 22220953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220986 and 22221004.

It is not an unprimeable number, because it can be changed into a prime (22221007) 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 in 15 ways as a sum of consecutive naturals, for example, 1118 + ... + 6759.

It is an arithmetic number, because the mean of its divisors is an integer number (1764672).

Almost surely, 2^22221017 is an apocalyptic number.

It is an amenable number.

22221017 is a deficient number, since it is larger than the sum of its proper divisors (6013735).

22221017 is a wasteful number, since it uses less digits than its factorization.

22221017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 22221017 is about 4713.9173730561. The cubic root of 22221017 is about 281.1391390564.

Adding to 22221017 its reverse (71012222), we get a palindrome (93233239).

The spelling of 22221017 in words is "twenty-two million, two hundred twenty-one thousand, seventeen".