2112278 has 24 divisors (see below), whose sum is σ = 3765456. Its totient is φ = 870480.

The previous prime is 2112263. The next prime is 2112307. The reversal of 2112278 is 8722112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13376 + ... + 13532.

It is an arithmetic number, because the mean of its divisors is an integer number (156894).

2^2112278 is an apocalyptic number.

2112278 is a deficient number, since it is larger than the sum of its proper divisors (1653178).

2112278 is a wasteful number, since it uses less digits than its factorization.

2112278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 197 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 2112278 is about 1453.3678130466. The cubic root of 2112278 is about 128.3070023376.

The spelling of 2112278 in words is "two million, one hundred twelve thousand, two hundred seventy-eight".