22124322001 has 4 divisors (see below), whose sum is σ = 22125000100. Its totient is φ = 22123643904.

The previous prime is 22124321977. The next prime is 22124322007. The reversal of 22124322001 is 10022342122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19978409025 + 2145912976 = 141345^2 + 46324^2 .

It is a cyclic number.

It is not a de Polignac number, because 22124322001 - 2⁷ = 22124321873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22124322001.

It is not an unprimeable number, because it can be changed into a prime (22124322007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287496 + ... + 356233.

It is an arithmetic number, because the mean of its divisors is an integer number (5531250025).

Almost surely, 2^22124322001 is an apocalyptic number.

It is an amenable number.

22124322001 is a deficient number, since it is larger than the sum of its proper divisors (678099).

22124322001 is an equidigital number, since it uses as much as digits as its factorization.

22124322001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678098.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22124322001 its reverse (10022342122), we get a palindrome (32146664123).

The spelling of 22124322001 in words is "twenty-two billion, one hundred twenty-four million, three hundred twenty-two thousand, one".