12120022202112 has 216 divisors, whose sum is σ = 38514847578480. Its totient is φ = 3634870026240.

The previous prime is 12120022202107. The next prime is 12120022202147. The reversal of 12120022202112 is 21120222002121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6687 + ... + 4923422.

It is an arithmetic number, because the mean of its divisors is an integer number (178309479530).

Almost surely, 2^{12120022202112} is an apocalyptic number.

12120022202112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120022202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19257423789240).

12120022202112 is an abundant number, since it is smaller than the sum of its proper divisors (26394825376368).

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

12120022202112 is a wasteful number, since it uses less digits than its factorization.

12120022202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930239 (or 4930222 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12120022202112 its reverse (21120222002121), we get a palindrome (33240244204233).

The spelling of 12120022202112 in words is "twelve trillion, one hundred twenty billion, twenty-two million, two hundred two thousand, one hundred twelve".