10212120212123 has 2 divisors, whose sum is σ = 10212120212124. Its totient is φ = 10212120212122.

The previous prime is 10212120212081. The next prime is 10212120212131. The reversal of 10212120212123 is 32121202121201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10212120212123 - 2¹⁰ = 10212120211099 is a prime.

It is a super-2 number, since 2×10212120212123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10212120212095 and 10212120212104.

It is not a weakly prime, because it can be changed into another prime (10212120212183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106060106061 + 5106060106062.

It is an arithmetic number, because the mean of its divisors is an integer number (5106060106062).

Almost surely, 2^{10212120212123} is an apocalyptic number.

10212120212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212120212123 is an equidigital number, since it uses as much as digits as its factorization.

10212120212123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10212120212123 its reverse (32121202121201), we get a palindrome (42333322333324).

The spelling of 10212120212123 in words is "ten trillion, two hundred twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-three".