20003221223 has 4 divisors (see below), whose sum is σ = 21056022360. Its totient is φ = 18950420088.

The previous prime is 20003221201. The next prime is 20003221283. The reversal of 20003221223 is 32212230002.

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

It is a cyclic number.

It is not a de Polignac number, because 20003221223 - 2⁸ = 20003220967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003221283) 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, 526400540 + ... + 526400577.

It is an arithmetic number, because the mean of its divisors is an integer number (5264005590).

Almost surely, 2^20003221223 is an apocalyptic number.

20003221223 is a deficient number, since it is larger than the sum of its proper divisors (1052801137).

20003221223 is a wasteful number, since it uses less digits than its factorization.

20003221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052801136.

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

Adding to 20003221223 its reverse (32212230002), we get a palindrome (52215451225).

It can be divided in two parts, 2000 and 3221223, that added together give a palindrome (3223223).

The spelling of 20003221223 in words is "twenty billion, three million, two hundred twenty-one thousand, two hundred twenty-three".