12022121121111 has 12 divisors (see below), whose sum is σ = 17378431642000. Its totient is φ = 8008680224160.

The previous prime is 12022121121091. The next prime is 12022121121113. The reversal of 12022121121111 is 11112112122021.

It is a happy number.

12022121121111 is a `hidden beast` number, since 1 + 20 + 221 + 211 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 12022121121111 - 2²³ = 12022112732503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022121121113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505586611 + ... + 505610388.

Almost surely, 2^{12022121121111} is an apocalyptic number.

12022121121111 is a deficient number, since it is larger than the sum of its proper divisors (5356310520889).

12022121121111 is a wasteful number, since it uses less digits than its factorization.

12022121121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011198326 (or 1011198323 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12022121121111 its reverse (11112112122021), we get a palindrome (23134233243132).

The spelling of 12022121121111 in words is "twelve trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eleven".