12122120111202 has 80 divisors (see below), whose sum is σ = 27492449513760. Its totient is φ = 3991636965888.

The previous prime is 12122120111177. The next prime is 12122120111209. The reversal of 12122120111202 is 20211102122121.

12122120111202 is a `hidden beast` number, since 121 + 221 + 201 + 1 + 120 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12122120111209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 160897513 + ... + 160972835.

It is an arithmetic number, because the mean of its divisors is an integer number (343655618922).

Almost surely, 2^{12122120111202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122120111202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13746224756880).

12122120111202 is an abundant number, since it is smaller than the sum of its proper divisors (15370329402558).

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

12122120111202 is a wasteful number, since it uses less digits than its factorization.

12122120111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87389 (or 87380 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12122120111202 its reverse (20211102122121), we get a palindrome (32333222233323).

The spelling of 12122120111202 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty million, one hundred eleven thousand, two hundred two".