212112312021211 has 8 divisors (see below), whose sum is σ = 244679622946560. Its totient is φ = 180111389112168.

The previous prime is 212112312021199. The next prime is 212112312021223. The reversal of 212112312021211 is 112120213211212.

It is an interprime number because it is at equal distance from previous prime (212112312021199) and next prime (212112312021223).

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 212112312021211 - 2²¹ = 212112309924059 is a prime.

It is a super-2 number, since 2×212112312021211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112312021241) 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, 141597003271 + ... + 141597004768.

It is an arithmetic number, because the mean of its divisors is an integer number (30584952868320).

Almost surely, 2^{212112312021211} is an apocalyptic number.

212112312021211 is a deficient number, since it is larger than the sum of its proper divisors (32567310925349).

212112312021211 is a wasteful number, since it uses less digits than its factorization.

212112312021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283194008153.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 212112312021211 its reverse (112120213211212), we get a palindrome (324232525232423).

The spelling of 212112312021211 in words is "two hundred twelve trillion, one hundred twelve billion, three hundred twelve million, twenty-one thousand, two hundred eleven".