212253211 has 8 divisors (see below), whose sum is σ = 226729584. Its totient is φ = 197998080.

The previous prime is 212253179. The next prime is 212253227. The reversal of 212253211 is 112352212.

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

It is a cyclic number.

It is not a de Polignac number, because 212253211 - 2⁵ = 212253179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212253281) 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, 53325 + ... + 57166.

It is an arithmetic number, because the mean of its divisors is an integer number (28341198).

Almost surely, 2^212253211 is an apocalyptic number.

212253211 is a deficient number, since it is larger than the sum of its proper divisors (14476373).

212253211 is a wasteful number, since it uses less digits than its factorization.

212253211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110621.

The product of its digits is 240, while the sum is 19.

The square root of 212253211 is about 14568.9124851514. The cubic root of 212253211 is about 596.5104958705.

Subtracting from 212253211 its reverse (112352212), we obtain a palindrome (99900999).

The spelling of 212253211 in words is "two hundred twelve million, two hundred fifty-three thousand, two hundred eleven".