20004023222 has 4 divisors (see below), whose sum is σ = 30006034836. Its totient is φ = 10002011610.

The previous prime is 20004023183. The next prime is 20004023239. The reversal of 20004023222 is 22232040002.

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

It is a super-2 number, since 2×20004023222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20004023222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001005804 + ... + 5001005807.

It is an arithmetic number, because the mean of its divisors is an integer number (7501508709).

Almost surely, 2^20004023222 is an apocalyptic number.

20004023222 is a deficient number, since it is larger than the sum of its proper divisors (10002011614).

20004023222 is a wasteful number, since it uses less digits than its factorization.

20004023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002011613.

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 20004023222 its reverse (22232040002), we get a palindrome (42236063224).

The spelling of 20004023222 in words is "twenty billion, four million, twenty-three thousand, two hundred twenty-two".