22443203121 has 8 divisors (see below), whose sum is σ = 30189087840. Its totient is φ = 14829726912.

The previous prime is 22443203119. The next prime is 22443203129. The reversal of 22443203121 is 12130234422.

It is a happy number.

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

It is not a de Polignac number, because 22443203121 - 2¹ = 22443203119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22443203091 and 22443203100.

It is not an unprimeable number, because it can be changed into a prime (22443203129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33101731 + ... + 33102408.

It is an arithmetic number, because the mean of its divisors is an integer number (3773635980).

Almost surely, 2^22443203121 is an apocalyptic number.

It is an amenable number.

22443203121 is a deficient number, since it is larger than the sum of its proper divisors (7745884719).

22443203121 is a wasteful number, since it uses less digits than its factorization.

22443203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66204255.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22443203121 its reverse (12130234422), we get a palindrome (34573437543).

The spelling of 22443203121 in words is "twenty-two billion, four hundred forty-three million, two hundred three thousand, one hundred twenty-one".