22229532865 has 8 divisors (see below), whose sum is σ = 26697806568. Its totient is φ = 17768714880.

The previous prime is 22229532841. The next prime is 22229532869. The reversal of 22229532865 is 56823592222.

It can be written as a sum of positive squares in 4 ways, for example, as 7342604721 + 14886928144 = 85689^2 + 122012^2 .

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

It is not a de Polignac number, because 22229532865 - 2⁵ = 22229532833 is a prime.

It is a super-2 number, since 2×22229532865² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22229532869) 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, 1857366 + ... + 1869295.

It is an arithmetic number, because the mean of its divisors is an integer number (3337225821).

Almost surely, 2^22229532865 is an apocalyptic number.

It is an amenable number.

22229532865 is a deficient number, since it is larger than the sum of its proper divisors (4468273703).

22229532865 is a wasteful number, since it uses less digits than its factorization.

22229532865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727859.

The product of its digits is 1036800, while the sum is 46.

The spelling of 22229532865 in words is "twenty-two billion, two hundred twenty-nine million, five hundred thirty-two thousand, eight hundred sixty-five".