12120020112222 has 32 divisors (see below), whose sum is σ = 29381866940160. Its totient is φ = 3672733367160.

The previous prime is 12120020112181. The next prime is 12120020112223. The reversal of 12120020112222 is 22221102002121.

It is a happy number.

12120020112222 is a `hidden beast` number, since 121 + 200 + 201 + 122 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12120020112195 and 12120020112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120020112223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10202036538 + ... + 10202037725.

It is an arithmetic number, because the mean of its divisors is an integer number (918183341880).

Almost surely, 2^{12120020112222} is an apocalyptic number.

12120020112222 is an abundant number, since it is smaller than the sum of its proper divisors (17261846827938).

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

12120020112222 is a wasteful number, since it uses less digits than its factorization.

12120020112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20404074285 (or 20404074279 counting only the distinct ones).

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

Adding to 12120020112222 its reverse (22221102002121), we get a palindrome (34341122114343).

The spelling of 12120020112222 in words is "twelve trillion, one hundred twenty billion, twenty million, one hundred twelve thousand, two hundred twenty-two".