212301020077 has 2 divisors, whose sum is σ = 212301020078. Its totient is φ = 212301020076.

The previous prime is 212301020039. The next prime is 212301020143. The reversal of 212301020077 is 770020103212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180381981796 + 31919038281 = 424714^2 + 178659^2 .

It is a cyclic number.

It is not a de Polignac number, because 212301020077 - 2³⁵ = 177941281709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212301020177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106150510038 + 106150510039.

It is an arithmetic number, because the mean of its divisors is an integer number (106150510039).

Almost surely, 2^212301020077 is an apocalyptic number.

It is an amenable number.

212301020077 is a deficient number, since it is larger than the sum of its proper divisors (1).

212301020077 is an equidigital number, since it uses as much as digits as its factorization.

212301020077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

Adding to 212301020077 its reverse (770020103212), we get a palindrome (982321123289).

The spelling of 212301020077 in words is "two hundred twelve billion, three hundred one million, twenty thousand, seventy-seven".