12022002022121 has 16 divisors (see below), whose sum is σ = 14797528644864. Its totient is φ = 9511130389824.

The previous prime is 12022002022117. The next prime is 12022002022157. The reversal of 12022002022121 is 12122020022021.

It is a happy number.

It is not a de Polignac number, because 12022002022121 - 2² = 12022002022117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022002022121.

It is not an unprimeable number, because it can be changed into a prime (12022002022171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4327205 + ... + 6539778.

It is an arithmetic number, because the mean of its divisors is an integer number (924845540304).

Almost surely, 2^{12022002022121} is an apocalyptic number.

It is an amenable number.

12022002022121 is a deficient number, since it is larger than the sum of its proper divisors (2775526622743).

12022002022121 is a wasteful number, since it uses less digits than its factorization.

12022002022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879160.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12022002022121 its reverse (12122020022021), we get a palindrome (24144022044142).

The spelling of 12022002022121 in words is "twelve trillion, twenty-two billion, two million, twenty-two thousand, one hundred twenty-one".