2112210221112 has 24 divisors (see below), whose sum is σ = 5720569349040. Its totient is φ = 704070073680.

The previous prime is 2112210221041. The next prime is 2112210221129. The reversal of 2112210221112 is 2111220122112.

2112210221112 is a `hidden beast` number, since 211 + 221 + 0 + 221 + 1 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×2112210221112² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14668126464 + ... + 14668126607.

It is an arithmetic number, because the mean of its divisors is an integer number (238357056210).

Almost surely, 2^{2112210221112} is an apocalyptic number.

It is an amenable number.

2112210221112 is an abundant number, since it is smaller than the sum of its proper divisors (3608359127928).

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

2112210221112 is a wasteful number, since it uses less digits than its factorization.

2112210221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29336253083 (or 29336253076 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2112210221112 its reverse (2111220122112), we get a palindrome (4223430343224).

The spelling of 2112210221112 in words is "two trillion, one hundred twelve billion, two hundred ten million, two hundred twenty-one thousand, one hundred twelve".