20021333223 has 8 divisors (see below), whose sum is σ = 27093545728. Its totient is φ = 13148338104.

The previous prime is 20021333207. The next prime is 20021333237. The reversal of 20021333223 is 32233312002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20021333223 - 2⁴ = 20021333207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20021333223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021333263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49804111 + ... + 49804512.

It is an arithmetic number, because the mean of its divisors is an integer number (3386693216).

Almost surely, 2^20021333223 is an apocalyptic number.

20021333223 is a deficient number, since it is larger than the sum of its proper divisors (7072212505).

20021333223 is an equidigital number, since it uses as much as digits as its factorization.

20021333223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99608693.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20021333223 its reverse (32233312002), we get a palindrome (52254645225).

The spelling of 20021333223 in words is "twenty billion, twenty-one million, three hundred thirty-three thousand, two hundred twenty-three".