12120122212122 has 32 divisors (see below), whose sum is σ = 25024475672064. Its totient is φ = 3909359361600.

The previous prime is 12120122212111. The next prime is 12120122212129. The reversal of 12120122212122 is 22121222102121.

It is not an unprimeable number, because it can be changed into a prime (12120122212129) 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, 935529 + ... + 5011532.

It is an arithmetic number, because the mean of its divisors is an integer number (782014864752).

Almost surely, 2^{12120122212122} is an apocalyptic number.

12120122212122 is an abundant number, since it is smaller than the sum of its proper divisors (12904353459942).

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

12120122212122 is a wasteful number, since it uses less digits than its factorization.

12120122212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958054.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12120122212122 its reverse (22121222102121), we get a palindrome (34241344314243).

The spelling of 12120122212122 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".