12212120101110 has 64 divisors (see below), whose sum is σ = 30118343270400. Its totient is φ = 3166748237952.

The previous prime is 12212120101091. The next prime is 12212120101117. The reversal of 12212120101110 is 1110102121221.

It is a happy number.

12212120101110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12212120101110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212120101117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174830 + ... + 5079809.

It is an arithmetic number, because the mean of its divisors is an integer number (470599113600).

Almost surely, 2^{12212120101110} is an apocalyptic number.

12212120101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212120101110 is an abundant number, since it is smaller than the sum of its proper divisors (17906223169290).

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

12212120101110 is a wasteful number, since it uses less digits than its factorization.

12212120101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256445.

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

Adding to 12212120101110 its reverse (1110102121221), we get a palindrome (13322222222331).

The spelling of 12212120101110 in words is "twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred one thousand, one hundred ten".