22021744066 has 32 divisors (see below), whose sum is σ = 38295037440. Its totient is φ = 9302432256.

The previous prime is 22021744061. The next prime is 22021744079. The reversal of 22021744066 is 66044712022.

It is not an unprimeable number, because it can be changed into a prime (22021744061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639070 + ... + 672646.

It is an arithmetic number, because the mean of its divisors is an integer number (1196719920).

Almost surely, 2^22021744066 is an apocalyptic number.

22021744066 is a deficient number, since it is larger than the sum of its proper divisors (16273293374).

22021744066 is a wasteful number, since it uses less digits than its factorization.

22021744066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34258.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 22021744066 in words is "twenty-two billion, twenty-one million, seven hundred forty-four thousand, sixty-six".