212100121319 has 2 divisors, whose sum is σ = 212100121320. Its totient is φ = 212100121318.

The previous prime is 212100121297. The next prime is 212100121379. The reversal of 212100121319 is 913121001212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212100121319 - 2¹² = 212100117223 is a prime.

It is a super-2 number, since 2×212100121319² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212100121294 and 212100121303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212100121379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050060659 + 106050060660.

It is an arithmetic number, because the mean of its divisors is an integer number (106050060660).

Almost surely, 2^212100121319 is an apocalyptic number.

212100121319 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100121319 is an equidigital number, since it uses as much as digits as its factorization.

212100121319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 212100121319 in words is "two hundred twelve billion, one hundred million, one hundred twenty-one thousand, three hundred nineteen".