2112222212112 has 40 divisors (see below), whose sum is σ = 5465417842656. Its totient is φ = 702932935936.

The previous prime is 2112222212057. The next prime is 2112222212173. The reversal of 2112222212112 is 2112122222112.

It is a super-2 number, since 2×2112222212112² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35630538 + ... + 35689769.

Almost surely, 2^{2112222212112} is an apocalyptic number.

It is an amenable number.

2112222212112 is an abundant number, since it is smaller than the sum of its proper divisors (3353195630544).

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

2112222212112 is a wasteful number, since it uses less digits than its factorization.

2112222212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71320935 (or 71320929 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 2112222212112 its reverse (2112122222112), we get a palindrome (4224344434224).

The spelling of 2112222212112 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twelve".