2112220412 has 12 divisors (see below), whose sum is σ = 3697320480. Its totient is φ = 1055843136.

The previous prime is 2112220399. The next prime is 2112220441. The reversal of 2112220412 is 2140222112.

It is a super-2 number, since 2×2112220412² = 8922950137738899488, which contains 22 as substring.

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, 48413 + ... + 81044.

It is an arithmetic number, because the mean of its divisors is an integer number (308110040).

Almost surely, 2^2112220412 is an apocalyptic number.

It is an amenable number.

2112220412 is a deficient number, since it is larger than the sum of its proper divisors (1585100068).

2112220412 is a wasteful number, since it uses less digits than its factorization.

2112220412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133540 (or 133538 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2112220412 is about 45958.8991600103. The cubic root of 2112220412 is about 1283.0583629620.

Adding to 2112220412 its reverse (2140222112), we get a palindrome (4252442524).

The spelling of 2112220412 in words is "two billion, one hundred twelve million, two hundred twenty thousand, four hundred twelve".