212104985231 has 2 divisors, whose sum is σ = 212104985232. Its totient is φ = 212104985230.

The previous prime is 212104985201. The next prime is 212104985237. The reversal of 212104985231 is 132589401212.

212104985231 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 212104985231 - 2¹⁰ = 212104984207 is a prime.

It is a super-2 number, since 2×212104985231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212104985237) 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, 106052492615 + 106052492616.

It is an arithmetic number, because the mean of its divisors is an integer number (106052492616).

Almost surely, 2^212104985231 is an apocalyptic number.

212104985231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212104985231 is an equidigital number, since it uses as much as digits as its factorization.

212104985231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 212104985231 in words is "two hundred twelve billion, one hundred four million, nine hundred eighty-five thousand, two hundred thirty-one".