2112002112222 has 24 divisors (see below), whose sum is σ = 4845181316976. Its totient is φ = 662588897856.

The previous prime is 2112002112173. The next prime is 2112002112229. The reversal of 2112002112222 is 2222112002112.

It is a happy number.

2112002112222 is a `hidden beast` number, since 211 + 20 + 0 + 211 + 2 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2112002112195 and 2112002112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112002112229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3450983538 + ... + 3450984149.

It is an arithmetic number, because the mean of its divisors is an integer number (201882554874).

Almost surely, 2^{2112002112222} is an apocalyptic number.

2112002112222 is an abundant number, since it is smaller than the sum of its proper divisors (2733179204754).

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

2112002112222 is a wasteful number, since it uses less digits than its factorization.

2112002112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901967712 (or 6901967709 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2112002112222 its reverse (2222112002112), we get a palindrome (4334114114334).

It can be divided in two parts, 2112002112 and 222, that multiplied together give a palindrome (468864468864).

The spelling of 2112002112222 in words is "two trillion, one hundred twelve billion, two million, one hundred twelve thousand, two hundred twenty-two".