12221212211110 has 16 divisors (see below), whose sum is σ = 25140779405856. Its totient is φ = 4190129900928.

The previous prime is 12221212211107. The next prime is 12221212211113. The reversal of 12221212211110 is 1111221212221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12221212211107) and next prime (12221212211113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221212211113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87294372867 + ... + 87294373006.

It is an arithmetic number, because the mean of its divisors is an integer number (1571298712866).

Almost surely, 2^{12221212211110} is an apocalyptic number.

12221212211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221212211110 is an abundant number, since it is smaller than the sum of its proper divisors (12919567194746).

12221212211110 is a wasteful number, since it uses less digits than its factorization.

12221212211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174588745887.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12221212211110 its reverse (1111221212221), we get a palindrome (13332433423331).

The spelling of 12221212211110 in words is "twelve trillion, two hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, one hundred ten".