211021012259 has 2 divisors, whose sum is σ = 211021012260. Its totient is φ = 211021012258.

The previous prime is 211021012217. The next prime is 211021012271. The reversal of 211021012259 is 952210120112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211021012259 is a prime.

It is a super-2 number, since 2×211021012259² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (211021012289) 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, 105510506129 + 105510506130.

It is an arithmetic number, because the mean of its divisors is an integer number (105510506130).

Almost surely, 2^211021012259 is an apocalyptic number.

211021012259 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021012259 is an equidigital number, since it uses as much as digits as its factorization.

211021012259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 211021012259 in words is "two hundred eleven billion, twenty-one million, twelve thousand, two hundred fifty-nine".