20201022223 has 4 divisors (see below), whose sum is σ = 20247676288. Its totient is φ = 20154368160.

The previous prime is 20201022203. The next prime is 20201022271. The reversal of 20201022223 is 32222010202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32222010202 = 2 ⋅16111005101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201022223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201022197 and 20201022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201022203) 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, 23326383 + ... + 23327248.

It is an arithmetic number, because the mean of its divisors is an integer number (5061919072).

Almost surely, 2^20201022223 is an apocalyptic number.

20201022223 is a deficient number, since it is larger than the sum of its proper divisors (46654065).

20201022223 is an equidigital number, since it uses as much as digits as its factorization.

20201022223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46654064.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20201022223 its reverse (32222010202), we get a palindrome (52423032425).

The spelling of 20201022223 in words is "twenty billion, two hundred one million, twenty-two thousand, two hundred twenty-three".