22021446016516 has 6 divisors (see below), whose sum is σ = 38537530528910. Its totient is φ = 11010723008256.

The previous prime is 22021446016501. The next prime is 22021446016519. The reversal of 22021446016516 is 61561064412022.

It can be written as a sum of positive squares in only one way, i.e., 22021395748416 + 50268100 = 4692696^2 + 7090^2 .

It is not an unprimeable number, because it can be changed into a prime (22021446016519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752680752061 + ... + 2752680752068.

Almost surely, 2^{22021446016516} is an apocalyptic number.

It is an amenable number.

22021446016516 is a deficient number, since it is larger than the sum of its proper divisors (16516084512394).

22021446016516 is a wasteful number, since it uses less digits than its factorization.

22021446016516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505361504133 (or 5505361504131 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 22021446016516 in words is "twenty-two trillion, twenty-one billion, four hundred forty-six million, sixteen thousand, five hundred sixteen".