20003123222 has 4 divisors (see below), whose sum is σ = 30004684836. Its totient is φ = 10001561610.

The previous prime is 20003123213. The next prime is 20003123243. The reversal of 20003123222 is 22232130002.

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

It is a super-2 number, since 2×20003123222² (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 20003123222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000780804 + ... + 5000780807.

It is an arithmetic number, because the mean of its divisors is an integer number (7501171209).

Almost surely, 2^20003123222 is an apocalyptic number.

20003123222 is a deficient number, since it is larger than the sum of its proper divisors (10001561614).

20003123222 is a wasteful number, since it uses less digits than its factorization.

20003123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001561613.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20003123222 its reverse (22232130002), we get a palindrome (42235253224).

The spelling of 20003123222 in words is "twenty billion, three million, one hundred twenty-three thousand, two hundred twenty-two".