22078817801 has 4 divisors (see below), whose sum is σ = 22086489600. Its totient is φ = 22071146004.

The previous prime is 22078817773. The next prime is 22078817819. The reversal of 22078817801 is 10871887022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22078817801 - 2¹⁴ = 22078801417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22078811801) 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, 3831581 + ... + 3837338.

It is an arithmetic number, because the mean of its divisors is an integer number (5521622400).

Almost surely, 2^22078817801 is an apocalyptic number.

It is an amenable number.

22078817801 is a deficient number, since it is larger than the sum of its proper divisors (7671799).

22078817801 is an equidigital number, since it uses as much as digits as its factorization.

22078817801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7671798.

The product of its (nonzero) digits is 100352, while the sum is 44.

The spelling of 22078817801 in words is "twenty-two billion, seventy-eight million, eight hundred seventeen thousand, eight hundred one".