211102221212111 has 16 divisors (see below), whose sum is σ = 222560156126880. Its totient is φ = 200029374504960.

The previous prime is 211102221212093. The next prime is 211102221212117. The reversal of 211102221212111 is 111212122201112.

It is a happy number.

It is not a de Polignac number, because 211102221212111 - 2²² = 211102217017807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102221212117) 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 15 ways as a sum of consecutive naturals, for example, 520186610 + ... + 520592271.

It is an arithmetic number, because the mean of its divisors is an integer number (13910009757930).

Almost surely, 2^{211102221212111} is an apocalyptic number.

211102221212111 is a deficient number, since it is larger than the sum of its proper divisors (11457934914769).

211102221212111 is a wasteful number, since it uses less digits than its factorization.

211102221212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040779066.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211102221212111 its reverse (111212122201112), we get a palindrome (322314343413223).

The spelling of 211102221212111 in words is "two hundred eleven trillion, one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred eleven".