22220032001 has 4 divisors (see below), whose sum is σ = 22221806292. Its totient is φ = 22218257712.

The previous prime is 22220031997. The next prime is 22220032013. The reversal of 22220032001 is 10023002222.

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 2780980225 + 19439051776 = 52735^2 + 139424^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220032001 - 2² = 22220031997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220032031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868226 + ... + 893451.

It is an arithmetic number, because the mean of its divisors is an integer number (5555451573).

Almost surely, 2^22220032001 is an apocalyptic number.

It is an amenable number.

22220032001 is a deficient number, since it is larger than the sum of its proper divisors (1774291).

22220032001 is a wasteful number, since it uses less digits than its factorization.

22220032001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774290.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22220032001 its reverse (10023002222), we get a palindrome (32243034223).

The spelling of 22220032001 in words is "twenty-two billion, two hundred twenty million, thirty-two thousand, one".