212231110021211 has 8 divisors (see below), whose sum is σ = 224105903996880. Its totient is φ = 200426789600928.

The previous prime is 212231110021207. The next prime is 212231110021237. The reversal of 212231110021211 is 112120011132212.

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 212231110021211 - 2² = 212231110021207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212231110021261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17618382656 + ... + 17618394701.

It is an arithmetic number, because the mean of its divisors is an integer number (28013237999610).

Almost surely, 2^{212231110021211} is an apocalyptic number.

212231110021211 is a deficient number, since it is larger than the sum of its proper divisors (11874793975669).

212231110021211 is a wasteful number, since it uses less digits than its factorization.

212231110021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35236777693.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 212231110021211 its reverse (112120011132212), we get a palindrome (324351121153423).

The spelling of 212231110021211 in words is "two hundred twelve trillion, two hundred thirty-one billion, one hundred ten million, twenty-one thousand, two hundred eleven".