12121001110111 has 8 divisors (see below), whose sum is σ = 12203770773600. Its totient is φ = 12038250389088.

The previous prime is 12121001110103. The next prime is 12121001110159. The reversal of 12121001110111 is 11101110012121.

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 12121001110111 - 2³ = 12121001110103 is a prime.

It is a super-2 number, since 2×12121001110111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121001110091 and 12121001110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121001110411) 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, 3450291 + ... + 6012196.

It is an arithmetic number, because the mean of its divisors is an integer number (1525471346700).

Almost surely, 2^{12121001110111} is an apocalyptic number.

12121001110111 is a deficient number, since it is larger than the sum of its proper divisors (82769663489).

12121001110111 is an equidigital number, since it uses as much as digits as its factorization.

12121001110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471233.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 12121001110111 its reverse (11101110012121), we get a palindrome (23222111122232).

The spelling of 12121001110111 in words is "twelve trillion, one hundred twenty-one billion, one million, one hundred ten thousand, one hundred eleven".