210001122223 has 2 divisors, whose sum is σ = 210001122224. Its totient is φ = 210001122222.

The previous prime is 210001122197. The next prime is 210001122257. The reversal of 210001122223 is 322221100012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210001122223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210001122197 and 210001122206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210001120223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000561111 + 105000561112.

It is an arithmetic number, because the mean of its divisors is an integer number (105000561112).

Almost surely, 2^210001122223 is an apocalyptic number.

210001122223 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001122223 is an equidigital number, since it uses as much as digits as its factorization.

210001122223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210001122223 its reverse (322221100012), we get a palindrome (532222222235).

The spelling of 210001122223 in words is "two hundred ten billion, one million, one hundred twenty-two thousand, two hundred twenty-three".