22020823705 has 4 divisors (see below), whose sum is σ = 26424988452. Its totient is φ = 17616658960.

The previous prime is 22020823703. The next prime is 22020823711. The reversal of 22020823705 is 50732802022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7148533401 + 14872290304 = 84549^2 + 121952^2 .

It is not a de Polignac number, because 22020823705 - 2¹ = 22020823703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22020823703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202082366 + ... + 2202082375.

It is an arithmetic number, because the mean of its divisors is an integer number (6606247113).

Almost surely, 2^22020823705 is an apocalyptic number.

It is an amenable number.

22020823705 is a deficient number, since it is larger than the sum of its proper divisors (4404164747).

22020823705 is an equidigital number, since it uses as much as digits as its factorization.

22020823705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404164746.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 22020823705 in words is "twenty-two billion, twenty million, eight hundred twenty-three thousand, seven hundred five".