122561882027 has 4 divisors (see below), whose sum is σ = 131989719120. Its totient is φ = 113134044936.

The previous prime is 122561882021. The next prime is 122561882039. The reversal of 122561882027 is 720288165221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720288165221 = 42281 ⋅17035741.

It is a cyclic number.

It is not a de Polignac number, because 122561882027 - 2⁶ = 122561881963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122561882021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713918527 + ... + 4713918552.

It is an arithmetic number, because the mean of its divisors is an integer number (32997429780).

Almost surely, 2^122561882027 is an apocalyptic number.

122561882027 is a deficient number, since it is larger than the sum of its proper divisors (9427837093).

122561882027 is an equidigital number, since it uses as much as digits as its factorization.

122561882027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427837092.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 122561882027 in words is "one hundred twenty-two billion, five hundred sixty-one million, eight hundred eighty-two thousand, twenty-seven".