212113321 has 8 divisors (see below), whose sum is σ = 255174080. Its totient is φ = 172242288.

The previous prime is 212113313. The next prime is 212113327. The reversal of 212113321 is 123311212.

212113321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212113321 - 2³ = 212113313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212113295 and 212113304.

It is not an unprimeable number, because it can be changed into a prime (212113327) 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, 797286 + ... + 797551.

It is an arithmetic number, because the mean of its divisors is an integer number (31896760).

Almost surely, 2^212113321 is an apocalyptic number.

It is an amenable number.

212113321 is a deficient number, since it is larger than the sum of its proper divisors (43060759).

212113321 is a wasteful number, since it uses less digits than its factorization.

212113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594863.

The product of its digits is 72, while the sum is 16.

The square root of 212113321 is about 14564.1107177884. The cubic root of 212113321 is about 596.3794194204.

Adding to 212113321 its reverse (123311212), we get a palindrome (335424533).

The spelling of 212113321 in words is "two hundred twelve million, one hundred thirteen thousand, three hundred twenty-one".