12221120011110 has 64 divisors (see below), whose sum is σ = 31078874949120. Its totient is φ = 3066994195200.

The previous prime is 12221120011073. The next prime is 12221120011127. The reversal of 12221120011110 is 1111002112221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12221120011110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70909167 + ... + 71081306.

It is an arithmetic number, because the mean of its divisors is an integer number (485607421080).

Almost surely, 2^{12221120011110} is an apocalyptic number.

12221120011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221120011110 is an abundant number, since it is smaller than the sum of its proper divisors (18857754938010).

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

12221120011110 is a wasteful number, since it uses less digits than its factorization.

12221120011110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141990653.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12221120011110 its reverse (1111002112221), we get a palindrome (13332122123331).

The spelling of 12221120011110 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, eleven thousand, one hundred ten".