12221102202111 has 64 divisors (see below), whose sum is σ = 20620268835840. Its totient is φ = 7081176453120.

The previous prime is 12221102202107. The next prime is 12221102202143. The reversal of 12221102202111 is 11120220112221.

12221102202111 is a `hidden beast` number, since 1 + 2 + 221 + 10 + 220 + 211 + 1 = 666.

It is not a de Polignac number, because 12221102202111 - 2² = 12221102202107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221102202151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13334631 + ... + 14221623.

It is an arithmetic number, because the mean of its divisors is an integer number (322191700560).

Almost surely, 2^{12221102202111} is an apocalyptic number.

12221102202111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12221102202111 is a deficient number, since it is larger than the sum of its proper divisors (8399166633729).

12221102202111 is a wasteful number, since it uses less digits than its factorization.

12221102202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889053 (or 889047 counting only the distinct ones).

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

Adding to 12221102202111 its reverse (11120220112221), we get a palindrome (23341322314332).

The spelling of 12221102202111 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred two thousand, one hundred eleven".