2201212122112 has 88 divisors (see below), whose sum is σ = 4509959832576. Its totient is φ = 1073255006208.

The previous prime is 2201212122059. The next prime is 2201212122133. The reversal of 2201212122112 is 2112212121022.

It is a self number, because there is not a number n which added to its sum of digits gives 2201212122112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27127233 + ... + 27208255.

It is an arithmetic number, because the mean of its divisors is an integer number (51249543552).

Almost surely, 2^{2201212122112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2201212122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2254979916288).

2201212122112 is an abundant number, since it is smaller than the sum of its proper divisors (2308747710464).

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

2201212122112 is an equidigital number, since it uses as much as digits as its factorization.

2201212122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81703 (or 81685 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2201212122112 its reverse (2112212121022), we get a palindrome (4313424243134).

The spelling of 2201212122112 in words is "two trillion, two hundred one billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".