22124535561 has 32 divisors (see below), whose sum is σ = 33059277440. Its totient is φ = 14623156800.

The previous prime is 22124535547. The next prime is 22124535637. The reversal of 22124535561 is 16553542122.

22124535561 is a `hidden beast` number, since 2 + 2 + 1 + 245 + 355 + 61 = 666.

It is not a de Polignac number, because 22124535561 - 2¹¹ = 22124533513 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22124525561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1846851 + ... + 1858791.

It is an arithmetic number, because the mean of its divisors is an integer number (1033102420).

Almost surely, 2^22124535561 is an apocalyptic number.

It is an amenable number.

22124535561 is a deficient number, since it is larger than the sum of its proper divisors (10934741879).

22124535561 is a wasteful number, since it uses less digits than its factorization.

22124535561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12534 (or 12528 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 22124535561 in words is "twenty-two billion, one hundred twenty-four million, five hundred thirty-five thousand, five hundred sixty-one".