212666700931 has 2 divisors, whose sum is σ = 212666700932. Its totient is φ = 212666700930.

The previous prime is 212666700919. The next prime is 212666700941. The reversal of 212666700931 is 139007666212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212666700931 - 2²³ = 212658312323 is a prime.

It is a super-3 number, since 3×212666700931³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (212666700941) 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, 106333350465 + 106333350466.

It is an arithmetic number, because the mean of its divisors is an integer number (106333350466).

Almost surely, 2^212666700931 is an apocalyptic number.

212666700931 is a deficient number, since it is larger than the sum of its proper divisors (1).

212666700931 is an equidigital number, since it uses as much as digits as its factorization.

212666700931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 212666700931 in words is "two hundred twelve billion, six hundred sixty-six million, seven hundred thousand, nine hundred thirty-one".