212112121001211 has 48 divisors (see below), whose sum is σ = 325556508420000. Its totient is φ = 132700600166400.

The previous prime is 212112121001153. The next prime is 212112121001227. The reversal of 212112121001211 is 112100121211212.

It is a happy number.

212112121001211 is a `hidden beast` number, since 2 + 121 + 121 + 210 + 0 + 1 + 211 = 666.

It is not a de Polignac number, because 212112121001211 - 2¹⁸ = 212112120739067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212112121001611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67445515 + ... + 70520363.

It is an arithmetic number, because the mean of its divisors is an integer number (6782427258750).

Almost surely, 2^{212112121001211} is an apocalyptic number.

212112121001211 is a deficient number, since it is larger than the sum of its proper divisors (113444387418789).

212112121001211 is a wasteful number, since it uses less digits than its factorization.

212112121001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078684 (or 3078681 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212112121001211 its reverse (112100121211212), we get a palindrome (324212242212423).

The spelling of 212112121001211 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty-one million, one thousand, two hundred eleven".