122642077 has 2 divisors, whose sum is σ = 122642078. Its totient is φ = 122642076.

The previous prime is 122642071. The next prime is 122642083. The reversal of 122642077 is 770246221.

It is a balanced prime because it is at equal distance from previous prime (122642071) and next prime (122642083).

It can be written as a sum of positive squares in only one way, i.e., 104571076 + 18071001 = 10226^2 + 4251^2 .

It is an emirp because it is prime and its reverse (770246221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122642077 - 2¹⁹ = 122117789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122642071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61321038 + 61321039.

It is an arithmetic number, because the mean of its divisors is an integer number (61321039).

Almost surely, 2^122642077 is an apocalyptic number.

It is an amenable number.

122642077 is a deficient number, since it is larger than the sum of its proper divisors (1).

122642077 is an equidigital number, since it uses as much as digits as its factorization.

122642077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 122642077 is about 11074.3883352536. The cubic root of 122642077 is about 496.8361246802.

Adding to 122642077 its reverse (770246221), we get a palindrome (892888298).

It can be divided in two parts, 12264 and 2077, that added together give a palindrome (14341).

The spelling of 122642077 in words is "one hundred twenty-two million, six hundred forty-two thousand, seventy-seven".