212141233991 has 2 divisors, whose sum is σ = 212141233992. Its totient is φ = 212141233990.

The previous prime is 212141233961. The next prime is 212141234009. The reversal of 212141233991 is 199332141212.

212141233991 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 not a de Polignac number, because 212141233991 - 2²² = 212137039687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212141233951) 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, 106070616995 + 106070616996.

It is an arithmetic number, because the mean of its divisors is an integer number (106070616996).

Almost surely, 2^212141233991 is an apocalyptic number.

212141233991 is a deficient number, since it is larger than the sum of its proper divisors (1).

212141233991 is an equidigital number, since it uses as much as digits as its factorization.

212141233991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The spelling of 212141233991 in words is "two hundred twelve billion, one hundred forty-one million, two hundred thirty-three thousand, nine hundred ninety-one".