12111120101021 has 8 divisors (see below), whose sum is σ = 12205831948800. Its totient is φ = 12016516560480.

The previous prime is 12111120100993. The next prime is 12111120101027. The reversal of 12111120101021 is 12010102111121.

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 12111120101021 - 2¹⁰ = 12111120099997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111120100987 and 12111120101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111120101027) 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 7 ways as a sum of consecutive naturals, for example, 26852285 + ... + 27299586.

It is an arithmetic number, because the mean of its divisors is an integer number (1525728993600).

Almost surely, 2^{12111120101021} is an apocalyptic number.

It is an amenable number.

12111120101021 is a deficient number, since it is larger than the sum of its proper divisors (94711847779).

12111120101021 is a wasteful number, since it uses less digits than its factorization.

12111120101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54153619.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12111120101021 its reverse (12010102111121), we get a palindrome (24121222212142).

The spelling of 12111120101021 in words is "twelve trillion, one hundred eleven billion, one hundred twenty million, one hundred one thousand, twenty-one".