212323120211 has 4 divisors (see below), whose sum is σ = 214425329424. Its totient is φ = 210220911000.

The previous prime is 212323120201. The next prime is 212323120213. The reversal of 212323120211 is 112021323212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212323120211 - 2⁶ = 212323120147 is a prime.

It is a super-2 number, since 2×212323120211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212323120213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051104455 + ... + 1051104656.

It is an arithmetic number, because the mean of its divisors is an integer number (53606332356).

Almost surely, 2^212323120211 is an apocalyptic number.

212323120211 is a deficient number, since it is larger than the sum of its proper divisors (2102209213).

212323120211 is a wasteful number, since it uses less digits than its factorization.

212323120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102209212.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212323120211 its reverse (112021323212), we get a palindrome (324344443423).

The spelling of 212323120211 in words is "two hundred twelve billion, three hundred twenty-three million, one hundred twenty thousand, two hundred eleven".