12012201111 has 8 divisors (see below), whose sum is σ = 16287730560. Its totient is φ = 7872402872.

The previous prime is 12012201083. The next prime is 12012201127. The reversal of 12012201111 is 11110221021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012201111 - 2¹⁴ = 12012184727 is a prime.

It is a super-2 number, since 2×12012201111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012201181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33932595 + ... + 33932948.

It is an arithmetic number, because the mean of its divisors is an integer number (2035966320).

Almost surely, 2^12012201111 is an apocalyptic number.

12012201111 is a deficient number, since it is larger than the sum of its proper divisors (4275529449).

12012201111 is an equidigital number, since it uses as much as digits as its factorization.

12012201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67865605.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12012201111 its reverse (11110221021), we get a palindrome (23122422132).

The spelling of 12012201111 in words is "twelve billion, twelve million, two hundred one thousand, one hundred eleven".