122542551029 has 2 divisors, whose sum is σ = 122542551030. Its totient is φ = 122542551028.

The previous prime is 122542551011. The next prime is 122542551041. The reversal of 122542551029 is 920155245221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105301548004 + 17241003025 = 324502^2 + 131305^2 .

It is an emirp because it is prime and its reverse (920155245221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122542551029 - 2⁸ = 122542550773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122542550983 and 122542551001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122542551049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61271275514 + 61271275515.

It is an arithmetic number, because the mean of its divisors is an integer number (61271275515).

Almost surely, 2^122542551029 is an apocalyptic number.

It is an amenable number.

122542551029 is a deficient number, since it is larger than the sum of its proper divisors (1).

122542551029 is an equidigital number, since it uses as much as digits as its factorization.

122542551029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 122542551029 in words is "one hundred twenty-two billion, five hundred forty-two million, five hundred fifty-one thousand, twenty-nine".