12211120121112 has 96 divisors (see below), whose sum is σ = 36229265280000. Its totient is φ = 3684856781760.

The previous prime is 12211120121107. The next prime is 12211120121119. The reversal of 12211120121112 is 21112102111221.

It is a happy number.

12211120121112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211120121112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211120121119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32066112 + ... + 32444687.

It is an arithmetic number, because the mean of its divisors is an integer number (377388180000).

Almost surely, 2^{12211120121112} is an apocalyptic number.

12211120121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12211120121112 is an abundant number, since it is smaller than the sum of its proper divisors (24018145158888).

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

12211120121112 is a wasteful number, since it uses less digits than its factorization.

12211120121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64511061 (or 64511054 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12211120121112 its reverse (21112102111221), we get a palindrome (33323222232333).

The spelling of 12211120121112 in words is "twelve trillion, two hundred eleven billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twelve".