212111201211211 has 8 divisors (see below), whose sum is σ = 223307033126400. Its totient is φ = 200918577744360.

The previous prime is 212111201211137. The next prime is 212111201211223. The reversal of 212111201211211 is 112112102111212.

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 212111201211211 - 2³¹ = 212109053727563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212111201211281) 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, 801976375 + ... + 802240816.

It is an arithmetic number, because the mean of its divisors is an integer number (27913379140800).

Almost surely, 2^{212111201211211} is an apocalyptic number.

212111201211211 is a deficient number, since it is larger than the sum of its proper divisors (11195831915189).

212111201211211 is a wasteful number, since it uses less digits than its factorization.

212111201211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604224169.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 212111201211211 its reverse (112112102111212), we get a palindrome (324223303322423).

Subtracting from 212111201211211 its reverse (112112102111212), we obtain a palindrome (99999099099999).

The spelling of 212111201211211 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred one million, two hundred eleven thousand, two hundred eleven".