212211001211 has 8 divisors (see below), whose sum is σ = 234763515648. Its totient is φ = 190201921000.

The previous prime is 212211001193. The next prime is 212211001283. The reversal of 212211001211 is 112100112212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212211001211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212211001291) 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, 135857735 + ... + 135859296.

It is an arithmetic number, because the mean of its divisors is an integer number (29345439456).

Almost surely, 2^212211001211 is an apocalyptic number.

212211001211 is a deficient number, since it is larger than the sum of its proper divisors (22552514437).

212211001211 is a wasteful number, since it uses less digits than its factorization.

212211001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271717113.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212211001211 its reverse (112100112212), we get a palindrome (324311113423).

The spelling of 212211001211 in words is "two hundred twelve billion, two hundred eleven million, one thousand, two hundred eleven".