12022022121 has 16 divisors (see below), whose sum is σ = 16131576384. Its totient is φ = 7963680704.

The previous prime is 12022022119. The next prime is 12022022143. The reversal of 12022022121 is 12122022021.

It is a cyclic number.

It is not a de Polignac number, because 12022022121 - 2¹ = 12022022119 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 12022022121.

It is not an unprimeable number, because it can be changed into a prime (12029022121) 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, 458266 + ... + 483788.

It is an arithmetic number, because the mean of its divisors is an integer number (1008223524).

Almost surely, 2^12022022121 is an apocalyptic number.

It is an amenable number.

12022022121 is a deficient number, since it is larger than the sum of its proper divisors (4109554263).

12022022121 is a wasteful number, since it uses less digits than its factorization.

12022022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26520.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12022022121 its reverse (12122022021), we get a palindrome (24144044142).

The spelling of 12022022121 in words is "twelve billion, twenty-two million, twenty-two thousand, one hundred twenty-one".