212031300229961 has 2 divisors, whose sum is σ = 212031300229962. Its totient is φ = 212031300229960.

The previous prime is 212031300229939. The next prime is 212031300230033. The reversal of 212031300229961 is 169922003130212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187555216206400 + 24476084023561 = 13695080^2 + 4947331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212031300229961 is a prime.

It is a super-2 number, since 2×212031300229961² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212030300229961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106015650114980 + 106015650114981.

It is an arithmetic number, because the mean of its divisors is an integer number (106015650114981).

Almost surely, 2^{212031300229961} is an apocalyptic number.

It is an amenable number.

212031300229961 is a deficient number, since it is larger than the sum of its proper divisors (1).

212031300229961 is an equidigital number, since it uses as much as digits as its factorization.

212031300229961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 212031300229961 in words is "two hundred twelve trillion, thirty-one billion, three hundred million, two hundred twenty-nine thousand, nine hundred sixty-one".