12212101121 has 8 divisors (see below), whose sum is σ = 13349653824. Its totient is φ = 11079108720.

The previous prime is 12212101087. The next prime is 12212101127. The reversal of 12212101121 is 12110121221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12212101121 - 2¹⁰ = 12212100097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212101096 and 12212101105.

It is not an unprimeable number, because it can be changed into a prime (12212101127) 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, 1134470 + ... + 1145183.

It is an arithmetic number, because the mean of its divisors is an integer number (1668706728).

Almost surely, 2^12212101121 is an apocalyptic number.

12212101121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12212101121 is a deficient number, since it is larger than the sum of its proper divisors (1137552703).

12212101121 is a wasteful number, since it uses less digits than its factorization.

12212101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280151.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12212101121 its reverse (12110121221), we get a palindrome (24322222342).

The spelling of 12212101121 in words is "twelve billion, two hundred twelve million, one hundred one thousand, one hundred twenty-one".