12101111110 has 16 divisors (see below), whose sum is σ = 23762182032. Its totient is φ = 4400404000.

The previous prime is 12101111107. The next prime is 12101111117. The reversal of 12101111110 is 1111110121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101111117) 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, 55004941 + ... + 55005160.

It is an arithmetic number, because the mean of its divisors is an integer number (1485136377).

Almost surely, 2^12101111110 is an apocalyptic number.

12101111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101111110 is a deficient number, since it is larger than the sum of its proper divisors (11661070922).

12101111110 is a wasteful number, since it uses less digits than its factorization.

12101111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010119.

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

Adding to 12101111110 its reverse (1111110121), we get a palindrome (13212221231).

The spelling of 12101111110 in words is "twelve billion, one hundred one million, one hundred eleven thousand, one hundred ten".