22020047505 has 16 divisors (see below), whose sum is σ = 39146751360. Its totient is φ = 11744025264.

The previous prime is 22020047459. The next prime is 22020047509. The reversal of 22020047505 is 50574002022.

It is not a de Polignac number, because 22020047505 - 2¹⁰ = 22020046481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22020047509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81555597 + ... + 81555866.

It is an arithmetic number, because the mean of its divisors is an integer number (2446671960).

Almost surely, 2^22020047505 is an apocalyptic number.

It is an amenable number.

22020047505 is a deficient number, since it is larger than the sum of its proper divisors (17126703855).

22020047505 is a wasteful number, since it uses less digits than its factorization.

22020047505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163111477 (or 163111471 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

Adding to 22020047505 its reverse (50574002022), we get a palindrome (72594049527).

The spelling of 22020047505 in words is "twenty-two billion, twenty million, forty-seven thousand, five hundred five".