12111000221110 has 32 divisors (see below), whose sum is σ = 25285909213440. Its totient is φ = 4090367663712.

The previous prime is 12111000221107. The next prime is 12111000221123. The reversal of 12111000221110 is 1112200011121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291146720 + ... + 1291156099.

It is an arithmetic number, because the mean of its divisors is an integer number (790184662920).

Almost surely, 2^{12111000221110} is an apocalyptic number.

12111000221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111000221110 is an abundant number, since it is smaller than the sum of its proper divisors (13174908992330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111000221110 is a wasteful number, since it uses less digits than its factorization.

12111000221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582302900.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12111000221110 its reverse (1112200011121), we get a palindrome (13223200232231).

The spelling of 12111000221110 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-one thousand, one hundred ten".