211213321019 has 2 divisors, whose sum is σ = 211213321020. Its totient is φ = 211213321018.

The previous prime is 211213320991. The next prime is 211213321037. The reversal of 211213321019 is 910123312112.

211213321019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211213321019 is a prime.

It is a super-2 number, since 2×211213321019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211213321219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606660509 + 105606660510.

It is an arithmetic number, because the mean of its divisors is an integer number (105606660510).

Almost surely, 2^211213321019 is an apocalyptic number.

211213321019 is a deficient number, since it is larger than the sum of its proper divisors (1).

211213321019 is an equidigital number, since it uses as much as digits as its factorization.

211213321019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 211213321019 in words is "two hundred eleven billion, two hundred thirteen million, three hundred twenty-one thousand, nineteen".