12012222201111 has 48 divisors (see below), whose sum is σ = 20036425368960. Its totient is φ = 6865628132160.

The previous prime is 12012222201059. The next prime is 12012222201127. The reversal of 12012222201111 is 11110222221021.

12012222201111 is a `hidden beast` number, since 1 + 201 + 222 + 220 + 11 + 11 = 666.

It is not a de Polignac number, because 12012222201111 - 2¹⁵ = 12012222168343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012222201131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48527541 + ... + 48774446.

It is an arithmetic number, because the mean of its divisors is an integer number (417425528520).

Almost surely, 2^{12012222201111} is an apocalyptic number.

12012222201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12012222201111 is a deficient number, since it is larger than the sum of its proper divisors (8024203167849).

12012222201111 is a wasteful number, since it uses less digits than its factorization.

12012222201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97302076 (or 97302073 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12012222201111 its reverse (11110222221021), we get a palindrome (23122444422132).

The spelling of 12012222201111 in words is "twelve trillion, twelve billion, two hundred twenty-two million, two hundred one thousand, one hundred eleven".