210220223 has 4 divisors (see below), whose sum is σ = 210355608. Its totient is φ = 210084840.

The previous prime is 210220193. The next prime is 210220229. The reversal of 210220223 is 322022012.

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 210220223 - 2⁸ = 210219967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210220198 and 210220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65336 + ... + 68477.

It is an arithmetic number, because the mean of its divisors is an integer number (52588902).

Almost surely, 2^210220223 is an apocalyptic number.

210220223 is a deficient number, since it is larger than the sum of its proper divisors (135385).

210220223 is a wasteful number, since it uses less digits than its factorization.

210220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135384.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 210220223 is about 14498.9731705387. The cubic root of 210220223 is about 594.5998986129.

Adding to 210220223 its reverse (322022012), we get a palindrome (532242235).

The spelling of 210220223 in words is "two hundred ten million, two hundred twenty thousand, two hundred twenty-three".