12220220212122 has 96 divisors (see below), whose sum is σ = 28036317067200. Its totient is φ = 3537061831680.

The previous prime is 12220220212111. The next prime is 12220220212129. The reversal of 12220220212122 is 22121202202221.

It is not an unprimeable number, because it can be changed into a prime (12220220212129) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 33414997 + ... + 33778727.

It is an arithmetic number, because the mean of its divisors is an integer number (292044969450).

Almost surely, 2^{12220220212122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220220212122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14018158533600).

12220220212122 is an abundant number, since it is smaller than the sum of its proper divisors (15816096855078).

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

12220220212122 is a wasteful number, since it uses less digits than its factorization.

12220220212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365728 (or 365715 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12220220212122 its reverse (22121202202221), we get a palindrome (34341422414343).

The spelling of 12220220212122 in words is "twelve trillion, two hundred twenty billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty-two".