22022020004 has 6 divisors (see below), whose sum is σ = 38538535014. Its totient is φ = 11011010000.

The previous prime is 22022020001. The next prime is 22022020021. The reversal of 22022020004 is 40002022022.

It can be written as a sum of positive squares in only one way, i.e., 21712611904 + 309408100 = 147352^2 + 17590^2 .

It is not an unprimeable number, because it can be changed into a prime (22022020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752752497 + ... + 2752752504.

It is an arithmetic number, because the mean of its divisors is an integer number (6423089169).

Almost surely, 2^22022020004 is an apocalyptic number.

It is an amenable number.

22022020004 is a deficient number, since it is larger than the sum of its proper divisors (16516515010).

22022020004 is a wasteful number, since it uses less digits than its factorization.

22022020004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505505005 (or 5505505003 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22022020004 its reverse (40002022022), we get a palindrome (62024042026).

The spelling of 22022020004 in words is "twenty-two billion, twenty-two million, twenty thousand, four".