212120111212211 has 8 divisors (see below), whose sum is σ = 216200996154000. Its totient is φ = 208042138073952.

The previous prime is 212120111212183. The next prime is 212120111212271. The reversal of 212120111212211 is 112212111021212.

It is a happy number.

212120111212211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212120111212211 - 2⁶ = 212120111212147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212120111212271) 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, 727803785 + ... + 728095178.

It is an arithmetic number, because the mean of its divisors is an integer number (27025124519250).

Almost surely, 2^{212120111212211} is an apocalyptic number.

212120111212211 is a deficient number, since it is larger than the sum of its proper divisors (4080884941789).

212120111212211 is a wasteful number, since it uses less digits than its factorization.

212120111212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455901765.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212120111212211 its reverse (112212111021212), we get a palindrome (324332222233423).

The spelling of 212120111212211 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred eleven".