212102220022123 has 2 divisors, whose sum is σ = 212102220022124. Its totient is φ = 212102220022122.

The previous prime is 212102220022061. The next prime is 212102220022183. The reversal of 212102220022123 is 321220022201212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212102220022123 - 2³³ = 212093630087531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212102220022094 and 212102220022103.

It is not a weakly prime, because it can be changed into another prime (212102220022183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051110011061 + 106051110011062.

It is an arithmetic number, because the mean of its divisors is an integer number (106051110011062).

Almost surely, 2^{212102220022123} is an apocalyptic number.

212102220022123 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102220022123 is an equidigital number, since it uses as much as digits as its factorization.

212102220022123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212102220022123 its reverse (321220022201212), we get a palindrome (533322242223335).

The spelling of 212102220022123 in words is "two hundred twelve trillion, one hundred two billion, two hundred twenty million, twenty-two thousand, one hundred twenty-three".