12011102111 has 6 divisors (see below), whose sum is σ = 12676537512. Its totient is φ = 11378938500.

The previous prime is 12011102101. The next prime is 12011102119. The reversal of 12011102111 is 11120111021.

It is not a de Polignac number, because 12011102111 - 2²² = 12006907807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011102092 and 12011102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011102119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16635515 + ... + 16636236.

It is an arithmetic number, because the mean of its divisors is an integer number (2112756252).

Almost surely, 2^12011102111 is an apocalyptic number.

12011102111 is a deficient number, since it is larger than the sum of its proper divisors (665435401).

12011102111 is an equidigital number, since it uses as much as digits as its factorization.

12011102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33271789 (or 33271770 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12011102111 its reverse (11120111021), we get a palindrome (23131213132).

It can be divided in two parts, 120111021 and 11, that multiplied together give a palindrome (1321221231).

The spelling of 12011102111 in words is "twelve billion, eleven million, one hundred two thousand, one hundred eleven".