201220020223 has 4 divisors (see below), whose sum is σ = 208158641640. Its totient is φ = 194281398808.

The previous prime is 201220020149. The next prime is 201220020227. The reversal of 201220020223 is 322020022102.

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 201220020223 - 2²⁵ = 201186465791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201220020197 and 201220020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220020227) 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, 3469310665 + ... + 3469310722.

It is an arithmetic number, because the mean of its divisors is an integer number (52039660410).

Almost surely, 2^201220020223 is an apocalyptic number.

201220020223 is a deficient number, since it is larger than the sum of its proper divisors (6938621417).

201220020223 is an equidigital number, since it uses as much as digits as its factorization.

201220020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938621416.

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

Adding to 201220020223 its reverse (322020022102), we get a palindrome (523240042325).

The spelling of 201220020223 in words is "two hundred one billion, two hundred twenty million, twenty thousand, two hundred twenty-three".