212130019 has 2 divisors, whose sum is σ = 212130020. Its totient is φ = 212130018.

The previous prime is 212130007. The next prime is 212130031. The reversal of 212130019 is 910031212.

212130019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (212130007) and next prime (212130031).

It is a cyclic number.

It is not a de Polignac number, because 212130019 - 2¹⁹ = 211605731 is a prime.

It is a super-2 number, since 2×212130019² = 89998289921880722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212129978 and 212130005.

It is not a weakly prime, because it can be changed into another prime (212130049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106065009 + 106065010.

It is an arithmetic number, because the mean of its divisors is an integer number (106065010).

Almost surely, 2^212130019 is an apocalyptic number.

212130019 is a deficient number, since it is larger than the sum of its proper divisors (1).

212130019 is an equidigital number, since it uses as much as digits as its factorization.

212130019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 212130019 is about 14564.6839649887. The cubic root of 212130019 is about 596.3950684175.

The spelling of 212130019 in words is "two hundred twelve million, one hundred thirty thousand, nineteen".