122644050121 has 2 divisors, whose sum is σ = 122644050122. Its totient is φ = 122644050120.

The previous prime is 122644050083. The next prime is 122644050127. The reversal of 122644050121 is 121050446221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103658241600 + 18985808521 = 321960^2 + 137789^2 .

It is an emirp because it is prime and its reverse (121050446221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122644050121 - 2³³ = 114054115529 is a prime.

It is a super-2 number, since 2×122644050121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122644050121.

It is not a weakly prime, because it can be changed into another prime (122644050127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61322025060 + 61322025061.

It is an arithmetic number, because the mean of its divisors is an integer number (61322025061).

Almost surely, 2^122644050121 is an apocalyptic number.

It is an amenable number.

122644050121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122644050121 is an equidigital number, since it uses as much as digits as its factorization.

122644050121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 122644050121 its reverse (121050446221), we get a palindrome (243694496342).

The spelling of 122644050121 in words is "one hundred twenty-two billion, six hundred forty-four million, fifty thousand, one hundred twenty-one".