102211022077 has 2 divisors, whose sum is σ = 102211022078. Its totient is φ = 102211022076.

The previous prime is 102211022057. The next prime is 102211022083. The reversal of 102211022077 is 770220112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70325205721 + 31885816356 = 265189^2 + 178566^2 .

It is a cyclic number.

It is not a de Polignac number, because 102211022077 - 2¹¹ = 102211020029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102211022057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105511038 + 51105511039.

It is an arithmetic number, because the mean of its divisors is an integer number (51105511039).

Almost surely, 2^102211022077 is an apocalyptic number.

It is an amenable number.

102211022077 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211022077 is an equidigital number, since it uses as much as digits as its factorization.

102211022077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 102211022077 its reverse (770220112201), we get a palindrome (872431134278).

The spelling of 102211022077 in words is "one hundred two billion, two hundred eleven million, twenty-two thousand, seventy-seven".