12221012002111 has 24 divisors (see below), whose sum is σ = 13653928530144. Its totient is φ = 10927317720000.

The previous prime is 12221012002109. The next prime is 12221012002117. The reversal of 12221012002111 is 11120021012221.

It is not a de Polignac number, because 12221012002111 - 2¹ = 12221012002109 is a prime.

It is a super-2 number, since 2×12221012002111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221012002117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221926521 + ... + 221981581.

It is an arithmetic number, because the mean of its divisors is an integer number (568913688756).

Almost surely, 2^{12221012002111} is an apocalyptic number.

12221012002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12221012002111 is a deficient number, since it is larger than the sum of its proper divisors (1432916528033).

12221012002111 is a wasteful number, since it uses less digits than its factorization.

12221012002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85215 (or 85204 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221012002111 its reverse (11120021012221), we get a palindrome (23341033014332).

The spelling of 12221012002111 in words is "twelve trillion, two hundred twenty-one billion, twelve million, two thousand, one hundred eleven".