122020370777 has 2 divisors, whose sum is σ = 122020370778. Its totient is φ = 122020370776.

The previous prime is 122020370761. The next prime is 122020370789. The reversal of 122020370777 is 777073020221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99947028736 + 22073342041 = 316144^2 + 148571^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020370777 - 2⁴ = 122020370761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122020370777.

It is not a weakly prime, because it can be changed into another prime (122020370077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010185388 + 61010185389.

It is an arithmetic number, because the mean of its divisors is an integer number (61010185389).

Almost surely, 2^122020370777 is an apocalyptic number.

It is an amenable number.

122020370777 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020370777 is an equidigital number, since it uses as much as digits as its factorization.

122020370777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57624, while the sum is 38.

Adding to 122020370777 its reverse (777073020221), we get a palindrome (899093390998).

The spelling of 122020370777 in words is "one hundred twenty-two billion, twenty million, three hundred seventy thousand, seven hundred seventy-seven".