12221100111112 has 16 divisors (see below), whose sum is σ = 23910848043840. Its totient is φ = 5844873966096.

The previous prime is 12221100110993. The next prime is 12221100111131. The reversal of 12221100111112 is 21111100112221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33209510988 + ... + 33209511355.

It is an arithmetic number, because the mean of its divisors is an integer number (1494428002740).

Almost surely, 2^{12221100111112} is an apocalyptic number.

It is an amenable number.

12221100111112 is a deficient number, since it is larger than the sum of its proper divisors (11689747932728).

12221100111112 is a wasteful number, since it uses less digits than its factorization.

12221100111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66419022372 (or 66419022368 counting only the distinct ones).

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

Adding to 12221100111112 its reverse (21111100112221), we get a palindrome (33332200223333).

The spelling of 12221100111112 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, one hundred eleven thousand, one hundred twelve".