212112411 has 16 divisors (see below), whose sum is σ = 323979264. Its totient is φ = 120921984.

The previous prime is 212112403. The next prime is 212112427. The reversal of 212112411 is 114211212.

It is not a de Polignac number, because 212112411 - 2³ = 212112403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212112401) 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, 2571 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (20248704).

Almost surely, 2^212112411 is an apocalyptic number.

212112411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212112411 is a deficient number, since it is larger than the sum of its proper divisors (111866853).

212112411 is a wasteful number, since it uses less digits than its factorization.

212112411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23770.

The product of its digits is 32, while the sum is 15.

The square root of 212112411 is about 14564.0794765752. The cubic root of 212112411 is about 596.3785665649.

Adding to 212112411 its reverse (114211212), we get a palindrome (326323623).

The spelling of 212112411 in words is "two hundred twelve million, one hundred twelve thousand, four hundred eleven".