2220112120212 has 144 divisors (see below), whose sum is σ = 6650953650432. Its totient is φ = 611181780480.

The previous prime is 2220112120211. The next prime is 2220112120307. The reversal of 2220112120212 is 2120212110222.

It is a happy number.

2220112120212 is a `hidden beast` number, since 2 + 220 + 112 + 120 + 212 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220112120211) 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 47 ways as a sum of consecutive naturals, for example, 195489 + ... + 2116232.

It is an arithmetic number, because the mean of its divisors is an integer number (46187178128).

Almost surely, 2^{2220112120212} 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 2220112120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3325476825216).

2220112120212 is an abundant number, since it is smaller than the sum of its proper divisors (4430841530220).

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

2220112120212 is a wasteful number, since it uses less digits than its factorization.

2220112120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311878 (or 2311873 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2220112120212 its reverse (2120212110222), we get a palindrome (4340324230434).

The spelling of 2220112120212 in words is "two trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty thousand, two hundred twelve".