211222110220123 has 2 divisors, whose sum is σ = 211222110220124. Its totient is φ = 211222110220122.

The previous prime is 211222110220097. The next prime is 211222110220217. The reversal of 211222110220123 is 321022011222112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211222110220123 - 2⁵ = 211222110220091 is a prime.

It is a super-2 number, since 2×211222110220123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222110220094 and 211222110220103.

It is not a weakly prime, because it can be changed into another prime (211222110224123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611055110061 + 105611055110062.

It is an arithmetic number, because the mean of its divisors is an integer number (105611055110062).

Almost surely, 2^{211222110220123} is an apocalyptic number.

211222110220123 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222110220123 is an equidigital number, since it uses as much as digits as its factorization.

211222110220123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 211222110220123 its reverse (321022011222112), we get a palindrome (532244121442235).

The spelling of 211222110220123 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, two hundred twenty thousand, one hundred twenty-three".