122102002122121 has 6 divisors (see below), whose sum is σ = 142037022876810. Its totient is φ = 104658858961776.

The previous prime is 122102002122119. The next prime is 122102002122187. The reversal of 122102002122121 is 121221200201221.

It can be written as a sum of positive squares in only one way, i.e., 107162578948096 + 14939423174025 = 10351936^2 + 3865155^2 .

It is not a de Polignac number, because 122102002122121 - 2¹ = 122102002122119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102002122421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1245938797116 + ... + 1245938797213.

It is an arithmetic number, because the mean of its divisors is an integer number (23672837146135).

Almost surely, 2^{122102002122121} is an apocalyptic number.

It is an amenable number.

122102002122121 is a deficient number, since it is larger than the sum of its proper divisors (19935020754689).

122102002122121 is an equidigital number, since it uses as much as digits as its factorization.

122102002122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491877594343 (or 2491877594336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122102002122121 its reverse (121221200201221), we get a palindrome (243323202323342).

The spelling of 122102002122121 in words is "one hundred twenty-two trillion, one hundred two billion, two million, one hundred twenty-two thousand, one hundred twenty-one".