22021560673 has 4 divisors (see below), whose sum is σ = 25167497920. Its totient is φ = 18875623428.

The previous prime is 22021560629. The next prime is 22021560697. The reversal of 22021560673 is 37606512022.

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 22021560673 - 2⁹ = 22021560161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021560173) 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, 1572968613 + ... + 1572968626.

It is an arithmetic number, because the mean of its divisors is an integer number (6291874480).

Almost surely, 2^22021560673 is an apocalyptic number.

It is an amenable number.

22021560673 is a deficient number, since it is larger than the sum of its proper divisors (3145937247).

22021560673 is an equidigital number, since it uses as much as digits as its factorization.

22021560673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145937246.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 22021560673 in words is "twenty-two billion, twenty-one million, five hundred sixty thousand, six hundred seventy-three".