12101101111 has 8 divisors (see below), whose sum is σ = 13234458384. Its totient is φ = 10973286720.

The previous prime is 12101101091. The next prime is 12101101141. The reversal of 12101101111 is 11110110121.

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

It is not a de Polignac number, because 12101101111 - 2⁷ = 12101100983 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 (12101101141) 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, 1381150 + ... + 1389883.

It is an arithmetic number, because the mean of its divisors is an integer number (1654307298).

Almost surely, 2^12101101111 is an apocalyptic number.

12101101111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12101101111 is a deficient number, since it is larger than the sum of its proper divisors (1133357273).

12101101111 is a wasteful number, since it uses less digits than its factorization.

12101101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771441.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 12101101111 its reverse (11110110121), we get a palindrome (23211211232).

The spelling of 12101101111 in words is "twelve billion, one hundred one million, one hundred one thousand, one hundred eleven".