212794911 has 16 divisors (see below), whose sum is σ = 360288000. Its totient is φ = 121596984.

The previous prime is 212794909. The next prime is 212794931. The reversal of 212794911 is 119497212.

It is not a de Polignac number, because 212794911 - 2¹ = 212794909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212794931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562761 + ... + 563138.

It is an arithmetic number, because the mean of its divisors is an integer number (22518000).

Almost surely, 2^212794911 is an apocalyptic number.

212794911 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212794911 is a deficient number, since it is larger than the sum of its proper divisors (147493089).

212794911 is a wasteful number, since it uses less digits than its factorization.

212794911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125915 (or 1125909 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 212794911 is about 14587.4915938279. The cubic root of 212794911 is about 597.0175242956.

The spelling of 212794911 in words is "two hundred twelve million, seven hundred ninety-four thousand, nine hundred eleven".