20021223111103 has 8 divisors (see below), whose sum is σ = 20493783383040. Its totient is φ = 19550603539320.

The previous prime is 20021223111091. The next prime is 20021223111179. The reversal of 20021223111103 is 30111132212002.

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

It is a cyclic number.

It is not a de Polignac number, because 20021223111103 - 2⁹ = 20021223110591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021223141103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485154163 + ... + 485195428.

It is an arithmetic number, because the mean of its divisors is an integer number (2561722922880).

Almost surely, 2^{20021223111103} is an apocalyptic number.

20021223111103 is a deficient number, since it is larger than the sum of its proper divisors (472560271937).

20021223111103 is an equidigital number, since it uses as much as digits as its factorization.

20021223111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970350077.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20021223111103 its reverse (30111132212002), we get a palindrome (50132355323105).

The spelling of 20021223111103 in words is "twenty trillion, twenty-one billion, two hundred twenty-three million, one hundred eleven thousand, one hundred three".