12020111121222 has 32 divisors (see below), whose sum is σ = 26713717192800. Its totient is φ = 4006349835264.

The previous prime is 12020111121199. The next prime is 12020111121257. The reversal of 12020111121222 is 22212111102021.

12020111121222 is a `hidden beast` number, since 120 + 201 + 1 + 1 + 121 + 222 = 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 = 12020111121195 and 12020111121204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9212343 + ... + 10435874.

It is an arithmetic number, because the mean of its divisors is an integer number (834803662275).

Almost surely, 2^{12020111121222} is an apocalyptic number.

12020111121222 is an abundant number, since it is smaller than the sum of its proper divisors (14693606071578).

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

12020111121222 is a wasteful number, since it uses less digits than its factorization.

12020111121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19659557 (or 19659551 counting only the distinct ones).

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

Adding to 12020111121222 its reverse (22212111102021), we get a palindrome (34232222223243).

The spelling of 12020111121222 in words is "twelve trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".