2112198278 has 8 divisors (see below), whose sum is σ = 3168789120. Its totient is φ = 1055935240.

The previous prime is 2112198259. The next prime is 2112198287. The reversal of 2112198278 is 8728912112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2112198278² = 8922763131172330568, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 65153 + ... + 92028.

It is an arithmetic number, because the mean of its divisors is an integer number (396098640).

Almost surely, 2^2112198278 is an apocalyptic number.

2112198278 is a deficient number, since it is larger than the sum of its proper divisors (1056590842).

2112198278 is a wasteful number, since it uses less digits than its factorization.

2112198278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163902.

The product of its digits is 32256, while the sum is 41.

The square root of 2112198278 is about 45958.6583572671. The cubic root of 2112198278 is about 1283.0538812149.

The spelling of 2112198278 in words is "two billion, one hundred twelve million, one hundred ninety-eight thousand, two hundred seventy-eight".