221110010101211 has 12 divisors (see below), whose sum is σ = 280592294823000. Its totient is φ = 172293514364160.

The previous prime is 221110010101177. The next prime is 221110010101223. The reversal of 221110010101211 is 112101010011122.

It is not a de Polignac number, because 221110010101211 - 2²⁶ = 221109942992347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221110010100211) 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 11 ways as a sum of consecutive naturals, for example, 205111326086 + ... + 205111327163.

It is an arithmetic number, because the mean of its divisors is an integer number (23382691235250).

Almost surely, 2^{221110010101211} is an apocalyptic number.

221110010101211 is a deficient number, since it is larger than the sum of its proper divisors (59482284721789).

221110010101211 is a wasteful number, since it uses less digits than its factorization.

221110010101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410222653274 (or 410222653267 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 221110010101211 its reverse (112101010011122), we get a palindrome (333211020112333).

The spelling of 221110010101211 in words is "two hundred twenty-one trillion, one hundred ten billion, ten million, one hundred one thousand, two hundred eleven".