122440112320121 has 4 divisors (see below), whose sum is σ = 124515368461200. Its totient is φ = 120364856179044.

The previous prime is 122440112320061. The next prime is 122440112320159. The reversal of 122440112320121 is 121023211044221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122440112320121 - 2¹⁰ = 122440112319097 is a prime.

It is a super-2 number, since 2×122440112320121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122440112320621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037628070451 + ... + 1037628070568.

It is an arithmetic number, because the mean of its divisors is an integer number (31128842115300).

Almost surely, 2^{122440112320121} is an apocalyptic number.

It is an amenable number.

122440112320121 is a deficient number, since it is larger than the sum of its proper divisors (2075256141079).

122440112320121 is an equidigital number, since it uses as much as digits as its factorization.

122440112320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075256141078.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 122440112320121 its reverse (121023211044221), we get a palindrome (243463323364342).

The spelling of 122440112320121 in words is "one hundred twenty-two trillion, four hundred forty billion, one hundred twelve million, three hundred twenty thousand, one hundred twenty-one".