2112212120 has 16 divisors (see below), whose sum is σ = 4752477360. Its totient is φ = 844884832.

The previous prime is 2112212119. The next prime is 2112212131. The reversal of 2112212120 is 212122112.

It is a super-2 number, since 2×2112212120² = 8922880079749788800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112212095 and 2112212104.

It is a congruent number.

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, 26402612 + ... + 26402691.

It is an arithmetic number, because the mean of its divisors is an integer number (297029835).

Almost surely, 2^2112212120 is an apocalyptic number.

2112212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112212120 is an abundant number, since it is smaller than the sum of its proper divisors (2640265240).

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

2112212120 is a wasteful number, since it uses less digits than its factorization.

2112212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52805314 (or 52805310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2112212120 is about 45958.8089488838. The cubic root of 2112212120 is about 1283.0566839810.

Adding to 2112212120 its reverse (212122112), we get a palindrome (2324334232).

The spelling of 2112212120 in words is "two billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty".