12012212102111 has 8 divisors (see below), whose sum is σ = 13012774150320. Its totient is φ = 11088195784536.

The previous prime is 12012212102083. The next prime is 12012212102123. The reversal of 12012212102111 is 11120121221021.

It is a de Polignac number, because none of the positive numbers 2^k-12012212102111 is a prime.

It is a super-2 number, since 2×12012212102111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012212102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012212102161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733773885 + ... + 2733778278.

It is an arithmetic number, because the mean of its divisors is an integer number (1626596768790).

Almost surely, 2^{12012212102111} is an apocalyptic number.

12012212102111 is a deficient number, since it is larger than the sum of its proper divisors (1000562048209).

12012212102111 is an frugal number, since it uses more digits than its factorization.

12012212102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467552202 (or 5467552176 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12012212102111 its reverse (11120121221021), we get a palindrome (23132333323132).

The spelling of 12012212102111 in words is "twelve trillion, twelve billion, two hundred twelve million, one hundred two thousand, one hundred eleven".