22813544921 has 8 divisors (see below), whose sum is σ = 23099053824. Its totient is φ = 22528289680.

The previous prime is 22813544917. The next prime is 22813544947. The reversal of 22813544921 is 12944531822.

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 22813544921 - 2² = 22813544917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22813544821) 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, 120911 + ... + 245451.

It is an arithmetic number, because the mean of its divisors is an integer number (2887381728).

Almost surely, 2^22813544921 is an apocalyptic number.

It is an amenable number.

22813544921 is a deficient number, since it is larger than the sum of its proper divisors (285508903).

22813544921 is a wasteful number, since it uses less digits than its factorization.

22813544921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126831.

The product of its digits is 138240, while the sum is 41.

The spelling of 22813544921 in words is "twenty-two billion, eight hundred thirteen million, five hundred forty-four thousand, nine hundred twenty-one".