201220223 has 2 divisors, whose sum is σ = 201220224.
Its totient is φ = 201220222.
The previous prime is 201220199. The next prime is 201220247. The reversal of 201220223 is 322022102.
It is a balanced prime because it is at equal distance from previous prime (201220199) and next prime (201220247).
It is a cyclic number.
It is not a de Polignac number, because 201220223 - 210 = 201219199 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 201220198 and 201220207.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (201220423) 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 as a sum of consecutive naturals, namely, 100610111 + 100610112.
It is an arithmetic number, because the mean of its divisors is an integer number (100610112).
Almost surely, 2201220223 is an apocalyptic number.
201220223 is a deficient number, since it is larger than the sum of its proper divisors (1).
201220223 is an equidigital number, since it uses as much as digits as its factorization.
201220223 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 201220223 is about 14185.2114189391.
The cubic root of 201220223 is about 585.9904549848.
Adding to 201220223 its reverse (322022102), we get a palindrome (523242325).
The spelling of 201220223 in words is "two hundred one million, two hundred twenty thousand, two hundred twenty-three".