122280077 has 2 divisors, whose sum is σ = 122280078. Its totient is φ = 122280076.

The previous prime is 122280019. The next prime is 122280139. The reversal of 122280077 is 770082221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63696361 + 58583716 = 7981^2 + 7654^2 .

It is a cyclic number.

It is not a de Polignac number, because 122280077 - 2⁶ = 122280013 is a prime.

It is a super-2 number, since 2×122280077² = 29904834462251858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122280007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61140038 + 61140039.

It is an arithmetic number, because the mean of its divisors is an integer number (61140039).

Almost surely, 2^122280077 is an apocalyptic number.

It is an amenable number.

122280077 is a deficient number, since it is larger than the sum of its proper divisors (1).

122280077 is an equidigital number, since it uses as much as digits as its factorization.

122280077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 122280077 is about 11058.0322390559. The cubic root of 122280077 is about 496.3468094033.

The spelling of 122280077 in words is "one hundred twenty-two million, two hundred eighty thousand, seventy-seven".