212506411 has 8 divisors (see below), whose sum is σ = 233722944. Its totient is φ = 191985600.

The previous prime is 212506391. The next prime is 212506439. The reversal of 212506411 is 114605212.

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

It is not a de Polignac number, because 212506411 - 2¹¹ = 212504363 is a prime.

It is a super-2 number, since 2×212506411² = 90317949432201842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212506211) 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, 173290 + ... + 174511.

It is an arithmetic number, because the mean of its divisors is an integer number (29215368).

Almost surely, 2^212506411 is an apocalyptic number.

212506411 is a deficient number, since it is larger than the sum of its proper divisors (21216533).

212506411 is a wasteful number, since it uses less digits than its factorization.

212506411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347861.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 212506411 is about 14577.5996309406. The cubic root of 212506411 is about 596.7475970176.

The spelling of 212506411 in words is "two hundred twelve million, five hundred six thousand, four hundred eleven".