2211121011112 has 96 divisors (see below), whose sum is σ = 4629898213920. Its totient is φ = 983889878400.

The previous prime is 2211121011101. The next prime is 2211121011137. The reversal of 2211121011112 is 2111101211122.

It is a super-2 number, since 2×2211121011112² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15320487 + ... + 15464137.

It is an arithmetic number, because the mean of its divisors is an integer number (48228106395).

Almost surely, 2^{2211121011112} 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 2211121011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2314949106960).

2211121011112 is an abundant number, since it is smaller than the sum of its proper divisors (2418777202808).

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

2211121011112 is a wasteful number, since it uses less digits than its factorization.

2211121011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143831 (or 143780 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 2211121011112 its reverse (2111101211122), we get a palindrome (4322222222234).

The spelling of 2211121011112 in words is "two trillion, two hundred eleven billion, one hundred twenty-one million, eleven thousand, one hundred twelve".