2112212100112 has 20 divisors (see below), whose sum is σ = 4093036228816. Its totient is φ = 1055944686240.

The previous prime is 2112212100109. The next prime is 2112212100121. The reversal of 2112212100112 is 2110012122112.

It is a super-2 number, since 2×2112212100112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9977214 + ... + 10186717.

Almost surely, 2^{2112212100112} is an apocalyptic number.

It is an amenable number.

2112212100112 is a deficient number, since it is larger than the sum of its proper divisors (1980824128704).

2112212100112 is a wasteful number, since it uses less digits than its factorization.

2112212100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20170486 (or 20170480 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2112212100112 its reverse (2110012122112), we get a palindrome (4222224222224).

The spelling of 2112212100112 in words is "two trillion, one hundred twelve billion, two hundred twelve million, one hundred thousand, one hundred twelve".