12212012220111 has 128 divisors (see below), whose sum is σ = 21508614144000. Its totient is φ = 6764585788800.

The previous prime is 12212012220061. The next prime is 12212012220241. The reversal of 12212012220111 is 11102221021221.

It is not a de Polignac number, because 12212012220111 - 2¹⁸ = 12212011957967 is a prime.

It is a super-2 number, since 2×12212012220111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212012227111) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 213203406 + ... + 213260676.

It is an arithmetic number, because the mean of its divisors is an integer number (168036048000).

Almost surely, 2^{12212012220111} is an apocalyptic number.

12212012220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12212012220111 is a deficient number, since it is larger than the sum of its proper divisors (9296601923889).

12212012220111 is a wasteful number, since it uses less digits than its factorization.

12212012220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58642 (or 58636 counting only the distinct ones).

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

Adding to 12212012220111 its reverse (11102221021221), we get a palindrome (23314233241332).

The spelling of 12212012220111 in words is "twelve trillion, two hundred twelve billion, twelve million, two hundred twenty thousand, one hundred eleven".