22010073521 has 8 divisors (see below), whose sum is σ = 22052714880. Its totient is φ = 21967472592.

The previous prime is 22010073509. The next prime is 22010073529. The reversal of 22010073521 is 12537001022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22010073521 - 2⁶ = 22010073457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22010073529) 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 in 7 ways as a sum of consecutive naturals, for example, 1220456 + ... + 1238358.

It is an arithmetic number, because the mean of its divisors is an integer number (2756589360).

Almost surely, 2^22010073521 is an apocalyptic number.

It is an amenable number.

22010073521 is a deficient number, since it is larger than the sum of its proper divisors (42641359).

22010073521 is a wasteful number, since it uses less digits than its factorization.

22010073521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215.

The product of its (nonzero) digits is 840, while the sum is 23.

Adding to 22010073521 its reverse (12537001022), we get a palindrome (34547074543).

The spelling of 22010073521 in words is "twenty-two billion, ten million, seventy-three thousand, five hundred twenty-one".