122240077 has 2 divisors, whose sum is σ = 122240078. Its totient is φ = 122240076.

The previous prime is 122240039. The next prime is 122240113. The reversal of 122240077 is 770042221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83064996 + 39175081 = 9114^2 + 6259^2 .

It is a cyclic number.

It is not a de Polignac number, because 122240077 - 2²³ = 113851469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122240477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61120038 + 61120039.

It is an arithmetic number, because the mean of its divisors is an integer number (61120039).

Almost surely, 2^122240077 is an apocalyptic number.

It is an amenable number.

122240077 is a deficient number, since it is larger than the sum of its proper divisors (1).

122240077 is an equidigital number, since it uses as much as digits as its factorization.

122240077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 122240077 is about 11056.2234510704. The cubic root of 122240077 is about 496.2926821949.

Adding to 122240077 its reverse (770042221), we get a palindrome (892282298).

The spelling of 122240077 in words is "one hundred twenty-two million, two hundred forty thousand, seventy-seven".