212020033091 has 2 divisors, whose sum is σ = 212020033092. Its totient is φ = 212020033090.

The previous prime is 212020033087. The next prime is 212020033111. The reversal of 212020033091 is 190330020212.

212020033091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212020033091 - 2² = 212020033087 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (212020083091) 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, 106010016545 + 106010016546.

It is an arithmetic number, because the mean of its divisors is an integer number (106010016546).

Almost surely, 2^212020033091 is an apocalyptic number.

212020033091 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020033091 is an equidigital number, since it uses as much as digits as its factorization.

212020033091 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 23.

The spelling of 212020033091 in words is "two hundred twelve billion, twenty million, thirty-three thousand, ninety-one".