212021012911 has 2 divisors, whose sum is σ = 212021012912. Its totient is φ = 212021012910.

The previous prime is 212021012909. The next prime is 212021013059. The reversal of 212021012911 is 119210120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021012911 - 2¹ = 212021012909 is a prime.

Together with 212021012909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010506455 + 106010506456.

It is an arithmetic number, because the mean of its divisors is an integer number (106010506456).

Almost surely, 2^212021012911 is an apocalyptic number.

212021012911 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021012911 is an equidigital number, since it uses as much as digits as its factorization.

212021012911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 212021012911 in words is "two hundred twelve billion, twenty-one million, twelve thousand, nine hundred eleven".