211223013310223 has 4 divisors (see below), whose sum is σ = 211223317488000. Its totient is φ = 211222709132448.

The previous prime is 211223013310217. The next prime is 211223013310237. The reversal of 211223013310223 is 322013310322112.

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 211223013310223 - 2⁶ = 211223013310159 is a prime.

It is a super-2 number, since 2×211223013310223² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211223013310192 and 211223013310201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211223013310213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151044890 + ... + 152436887.

It is an arithmetic number, because the mean of its divisors is an integer number (52805829372000).

Almost surely, 2^{211223013310223} is an apocalyptic number.

211223013310223 is a deficient number, since it is larger than the sum of its proper divisors (304177777).

211223013310223 is an equidigital number, since it uses as much as digits as its factorization.

211223013310223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304177776.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 211223013310223 its reverse (322013310322112), we get a palindrome (533236323632335).

The spelling of 211223013310223 in words is "two hundred eleven trillion, two hundred twenty-three billion, thirteen million, three hundred ten thousand, two hundred twenty-three".