212113219 has 2 divisors, whose sum is σ = 212113220. Its totient is φ = 212113218.

The previous prime is 212113189. The next prime is 212113229. The reversal of 212113219 is 912311212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212113219 - 2¹³ = 212105027 is a prime.

It is a super-2 number, since 2×212113219² = 89984035349083922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212113219.

It is not a weakly prime, because it can be changed into another prime (212113229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056609 + 106056610.

It is an arithmetic number, because the mean of its divisors is an integer number (106056610).

Almost surely, 2^212113219 is an apocalyptic number.

212113219 is a deficient number, since it is larger than the sum of its proper divisors (1).

212113219 is an equidigital number, since it uses as much as digits as its factorization.

212113219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 212113219 is about 14564.1072160294. The cubic root of 212113219 is about 596.3793238257.

The spelling of 212113219 in words is "two hundred twelve million, one hundred thirteen thousand, two hundred nineteen".