212120211222213 has 8 divisors (see below), whose sum is σ = 323230798052928. Its totient is φ = 121211549269824.

The previous prime is 212120211222209. The next prime is 212120211222253. The reversal of 212120211222213 is 312222112021212.

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

It is not a de Polignac number, because 212120211222213 - 2² = 212120211222209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120211222253) 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, 5050481219556 + ... + 5050481219597.

It is an arithmetic number, because the mean of its divisors is an integer number (40403849756616).

Almost surely, 2^{212120211222213} is an apocalyptic number.

It is an amenable number.

212120211222213 is a deficient number, since it is larger than the sum of its proper divisors (111110586830715).

212120211222213 is a wasteful number, since it uses less digits than its factorization.

212120211222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100962439163.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 212120211222213 its reverse (312222112021212), we get a palindrome (524342323243425).

The spelling of 212120211222213 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, two hundred thirteen".