212278371 has 8 divisors (see below), whose sum is σ = 299687184. Its totient is φ = 133194240.

The previous prime is 212278351. The next prime is 212278373. The reversal of 212278371 is 173872212.

212278371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212278371 - 2⁶ = 212278307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212278373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2081110 + ... + 2081211.

It is an arithmetic number, because the mean of its divisors is an integer number (37460898).

Almost surely, 2^212278371 is an apocalyptic number.

212278371 is a deficient number, since it is larger than the sum of its proper divisors (87408813).

212278371 is a wasteful number, since it uses less digits than its factorization.

212278371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162341.

The product of its digits is 9408, while the sum is 33.

The square root of 212278371 is about 14569.7759419972. The cubic root of 212278371 is about 596.5340645930.

The spelling of 212278371 in words is "two hundred twelve million, two hundred seventy-eight thousand, three hundred seventy-one".