212211112001211 has 12 divisors (see below), whose sum is σ = 308867063779560. Its totient is φ = 140394119898240.

The previous prime is 212211112001191. The next prime is 212211112001351. The reversal of 212211112001211 is 112100211112212.

It is a happy number.

212211112001211 is a `hidden beast` number, since 21 + 221 + 1 + 11 + 200 + 1 + 211 = 666.

It is not a de Polignac number, because 212211112001211 - 2¹¹ = 212211111999163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212211112041211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89996229526 + ... + 89996231883.

It is an arithmetic number, because the mean of its divisors is an integer number (25738921981630).

Almost surely, 2^{212211112001211} is an apocalyptic number.

212211112001211 is a deficient number, since it is larger than the sum of its proper divisors (96655951778349).

212211112001211 is a wasteful number, since it uses less digits than its factorization.

212211112001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179992461546 (or 179992461543 counting only the distinct ones).

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

Adding to 212211112001211 its reverse (112100211112212), we get a palindrome (324311323113423).

It can be divided in two parts, 212211112001 and 211, that added together give a palindrome (212211112212).

The spelling of 212211112001211 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twelve million, one thousand, two hundred eleven".