212110393 has 16 divisors (see below), whose sum is σ = 242038656. Its totient is φ = 183997440.

The previous prime is 212110373. The next prime is 212110417. The reversal of 212110393 is 393011212.

It is not a de Polignac number, because 212110393 - 2⁵ = 212110361 is a prime.

It is a super-2 number, since 2×212110393² = 89981637637228898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212110303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145255 + ... + 146707.

It is an arithmetic number, because the mean of its divisors is an integer number (15127416).

Almost surely, 2^212110393 is an apocalyptic number.

212110393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212110393 is a deficient number, since it is larger than the sum of its proper divisors (29928263).

212110393 is a wasteful number, since it uses less digits than its factorization.

212110393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 212110393 is about 14564.0101963711. The cubic root of 212110393 is about 596.3766752788.

The spelling of 212110393 in words is "two hundred twelve million, one hundred ten thousand, three hundred ninety-three".