12240120111 has 16 divisors (see below), whose sum is σ = 16479684960. Its totient is φ = 8080450560.

The previous prime is 12240120107. The next prime is 12240120143. The reversal of 12240120111 is 11102104221.

It is not a de Polignac number, because 12240120111 - 2² = 12240120107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240125111) 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, 366741 + ... + 398721.

It is an arithmetic number, because the mean of its divisors is an integer number (1029980310).

Almost surely, 2^12240120111 is an apocalyptic number.

12240120111 is a deficient number, since it is larger than the sum of its proper divisors (4239564849).

12240120111 is a wasteful number, since it uses less digits than its factorization.

12240120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33226.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12240120111 its reverse (11102104221), we get a palindrome (23342224332).

The spelling of 12240120111 in words is "twelve billion, two hundred forty million, one hundred twenty thousand, one hundred eleven".