11121100221212 has 12 divisors (see below), whose sum is σ = 19502555714880. Its totient is φ = 5548941445536.

The previous prime is 11121100221211. The next prime is 11121100221233. The reversal of 11121100221212 is 21212200112111.

11121100221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121100221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2902164113 + ... + 2902167944.

It is an arithmetic number, because the mean of its divisors is an integer number (1625212976240).

Almost surely, 2^{11121100221212} is an apocalyptic number.

It is an amenable number.

11121100221212 is a deficient number, since it is larger than the sum of its proper divisors (8381455493668).

11121100221212 is a wasteful number, since it uses less digits than its factorization.

11121100221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804332540 (or 5804332538 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121100221212 its reverse (21212200112111), we get a palindrome (32333300333323).

The spelling of 11121100221212 in words is "eleven trillion, one hundred twenty-one billion, one hundred million, two hundred twenty-one thousand, two hundred twelve".