212200221021111 has 24 divisors (see below), whose sum is σ = 309257181342720. Its totient is φ = 140203891746000.

The previous prime is 212200221021101. The next prime is 212200221021119. The reversal of 212200221021111 is 111120122002212.

212200221021111 is a `hidden beast` number, since 2 + 1 + 220 + 0 + 221 + 0 + 211 + 11 = 666.

It is not a de Polignac number, because 212200221021111 - 2⁴¹ = 210001197765559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200221021119) 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 23 ways as a sum of consecutive naturals, for example, 180556251 + ... + 181727708.

It is an arithmetic number, because the mean of its divisors is an integer number (12885715889280).

Almost surely, 2^{212200221021111} is an apocalyptic number.

212200221021111 is a deficient number, since it is larger than the sum of its proper divisors (97056960321609).

212200221021111 is a wasteful number, since it uses less digits than its factorization.

212200221021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362284547 (or 362284544 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212200221021111 its reverse (111120122002212), we get a palindrome (323320343023323).

The spelling of 212200221021111 in words is "two hundred twelve trillion, two hundred billion, two hundred twenty-one million, twenty-one thousand, one hundred eleven".