122021756713 has 2 divisors, whose sum is σ = 122021756714. Its totient is φ = 122021756712.

The previous prime is 122021756657. The next prime is 122021756767. The reversal of 122021756713 is 317657120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97495691049 + 24526065664 = 312243^2 + 156608^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021756713 - 2⁹ = 122021756201 is a prime.

It is a super-2 number, since 2×122021756713² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122021706713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010878356 + 61010878357.

It is an arithmetic number, because the mean of its divisors is an integer number (61010878357).

Almost surely, 2^122021756713 is an apocalyptic number.

It is an amenable number.

122021756713 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021756713 is an equidigital number, since it uses as much as digits as its factorization.

122021756713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

Adding to 122021756713 its reverse (317657120221), we get a palindrome (439678876934).

The spelling of 122021756713 in words is "one hundred twenty-two billion, twenty-one million, seven hundred fifty-six thousand, seven hundred thirteen".