12122220211112 has 32 divisors (see below), whose sum is σ = 24800603064480. Its totient is φ = 5508955066560.

The previous prime is 12122220211109. The next prime is 12122220211169. The reversal of 12122220211112 is 21111202222121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13886918 + ... + 14734005.

It is an arithmetic number, because the mean of its divisors is an integer number (775018845765).

Almost surely, 2^{12122220211112} is an apocalyptic number.

It is an amenable number.

12122220211112 is an abundant number, since it is smaller than the sum of its proper divisors (12678382853368).

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

12122220211112 is a wasteful number, since it uses less digits than its factorization.

12122220211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28625753 (or 28625749 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122220211112 its reverse (21111202222121), we get a palindrome (33233422433233).

The spelling of 12122220211112 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty million, two hundred eleven thousand, one hundred twelve".