12011202111 has 8 divisors (see below), whose sum is σ = 16016016640. Its totient is φ = 8006927832.

The previous prime is 12011202101. The next prime is 12011202167. The reversal of 12011202111 is 11120211021.

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

It is not a de Polignac number, because 12011202111 - 2¹⁵ = 12011169343 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 (12011202101) 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, 79975 + ... + 174408.

It is an arithmetic number, because the mean of its divisors is an integer number (2002002080).

Almost surely, 2^12011202111 is an apocalyptic number.

12011202111 is a deficient number, since it is larger than the sum of its proper divisors (4004814529).

12011202111 is a wasteful number, since it uses less digits than its factorization.

12011202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270125.

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

Adding to 12011202111 its reverse (11120211021), we get a palindrome (23131413132).

The spelling of 12011202111 in words is "twelve billion, eleven million, two hundred two thousand, one hundred eleven".