2112201222112 has 48 divisors (see below), whose sum is σ = 4340682888192. Its totient is φ = 1009837037440.

The previous prime is 2112201222101. The next prime is 2112201222113. The reversal of 2112201222112 is 2112221022112.

It is a super-2 number, since 2×2112201222112² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112201222112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112201222113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664037 + ... + 2644507.

It is an arithmetic number, because the mean of its divisors is an integer number (90430893504).

Almost surely, 2^{2112201222112} is an apocalyptic number.

It is an amenable number.

2112201222112 is an abundant number, since it is smaller than the sum of its proper divisors (2228481666080).

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

2112201222112 is a wasteful number, since it uses less digits than its factorization.

2112201222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983431 (or 983423 counting only the distinct ones).

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

Adding to 2112201222112 its reverse (2112221022112), we get a palindrome (4224422244224).

The spelling of 2112201222112 in words is "two trillion, one hundred twelve billion, two hundred one million, two hundred twenty-two thousand, one hundred twelve".