212143312221211 has 8 divisors (see below), whose sum is σ = 242449600279040. Its totient is φ = 181837049312808.

The previous prime is 212143312221187. The next prime is 212143312221223. The reversal of 212143312221211 is 112122213341212.

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 212143312221211 - 2⁹ = 212143312220699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212143312221211.

It is not an unprimeable number, because it can be changed into a prime (212143312221611) 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, 18088750 + ... + 27413308.

It is an arithmetic number, because the mean of its divisors is an integer number (30306200034880).

Almost surely, 2^{212143312221211} is an apocalyptic number.

212143312221211 is a deficient number, since it is larger than the sum of its proper divisors (30306288057829).

212143312221211 is an equidigital number, since it uses as much as digits as its factorization.

212143312221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574713.

The product of its digits is 2304, while the sum is 28.

Adding to 212143312221211 its reverse (112122213341212), we get a palindrome (324265525562423).

The spelling of 212143312221211 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred twelve million, two hundred twenty-one thousand, two hundred eleven".