212331011077 has 2 divisors, whose sum is σ = 212331011078. Its totient is φ = 212331011076.

The previous prime is 212331011059. The next prime is 212331011117. The reversal of 212331011077 is 770110133212.

212331011077 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 can be written as a sum of positive squares in only one way, i.e., 201247343236 + 11083667841 = 448606^2 + 105279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212331011077 is a prime.

It is a super-3 number, since 3×212331011077³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212331011777) 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, 106165505538 + 106165505539.

It is an arithmetic number, because the mean of its divisors is an integer number (106165505539).

Almost surely, 2^212331011077 is an apocalyptic number.

It is an amenable number.

212331011077 is a deficient number, since it is larger than the sum of its proper divisors (1).

212331011077 is an equidigital number, since it uses as much as digits as its factorization.

212331011077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

Adding to 212331011077 its reverse (770110133212), we get a palindrome (982441144289).

The spelling of 212331011077 in words is "two hundred twelve billion, three hundred thirty-one million, eleven thousand, seventy-seven".