2112211988 has 36 divisors (see below), whose sum is σ = 4133300640. Its totient is φ = 941657472.

The previous prime is 2112211967. The next prime is 2112212029. The reversal of 2112211988 is 8891122112.

It is a super-2 number, since 2×2112211988² = 8922878964501824288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26120 + ... + 70047.

Almost surely, 2^2112211988 is an apocalyptic number.

It is an amenable number.

2112211988 is a deficient number, since it is larger than the sum of its proper divisors (2021088652).

2112211988 is a wasteful number, since it uses less digits than its factorization.

2112211988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96224 (or 96205 counting only the distinct ones).

The product of its digits is 4608, while the sum is 35.

The square root of 2112211988 is about 45958.8075128152. The cubic root of 2112211988 is about 1283.0566572533.

The spelling of 2112211988 in words is "two billion, one hundred twelve million, two hundred eleven thousand, nine hundred eighty-eight".