212230113 has 24 divisors (see below), whose sum is σ = 295119552. Its totient is φ = 135559584.

The previous prime is 212230111. The next prime is 212230181. The reversal of 212230113 is 311032212.

It is not a de Polignac number, because 212230113 - 2¹ = 212230111 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212230092 and 212230101.

It is not an unprimeable number, because it can be changed into a prime (212230111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1270756 + ... + 1270922.

It is an arithmetic number, because the mean of its divisors is an integer number (12296648).

Almost surely, 2^212230113 is an apocalyptic number.

It is an amenable number.

212230113 is a deficient number, since it is larger than the sum of its proper divisors (82889439).

212230113 is a wasteful number, since it uses less digits than its factorization.

212230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 212230113 is about 14568.1197482723. The cubic root of 212230113 is about 596.4888570942.

Adding to 212230113 its reverse (311032212), we get a palindrome (523262325).

The spelling of 212230113 in words is "two hundred twelve million, two hundred thirty thousand, one hundred thirteen".