212111012122103 has 2 divisors, whose sum is σ = 212111012122104. Its totient is φ = 212111012122102.

The previous prime is 212111012122043. The next prime is 212111012122129. The reversal of 212111012122103 is 301221210111212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212111012122103 - 2²² = 212111007927799 is a prime.

It is a super-2 number, since 2×212111012122103² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212111012122133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055506061051 + 106055506061052.

It is an arithmetic number, because the mean of its divisors is an integer number (106055506061052).

Almost surely, 2^{212111012122103} is an apocalyptic number.

212111012122103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111012122103 is an equidigital number, since it uses as much as digits as its factorization.

212111012122103 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 20.

Adding to 212111012122103 its reverse (301221210111212), we get a palindrome (513332222233315).

The spelling of 212111012122103 in words is "two hundred twelve trillion, one hundred eleven billion, twelve million, one hundred twenty-two thousand, one hundred three".