22220040064 has 32 divisors (see below), whose sum is σ = 44346101400. Its totient is φ = 11090038272.

The previous prime is 22220040061. The next prime is 22220040083. The reversal of 22220040064 is 46004002222.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220040061) 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, 84534 + ... + 227125.

Almost surely, 2^22220040064 is an apocalyptic number.

It is an amenable number.

22220040064 is a deficient number, since it is larger than the sum of its proper divisors (22126061336).

22220040064 is an equidigital number, since it uses as much as digits as its factorization.

22220040064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312230 (or 312218 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22220040064 its reverse (46004002222), we get a palindrome (68224042286).

The spelling of 22220040064 in words is "twenty-two billion, two hundred twenty million, forty thousand, sixty-four".