12101021111021 has 8 divisors (see below), whose sum is σ = 12127471089888. Its totient is φ = 12074599530000.

The previous prime is 12101021111009. The next prime is 12101021111077. The reversal of 12101021111021 is 12011112010121.

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 12101021111021 - 2²² = 12101016916717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101021110987 and 12101021111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101021111521) 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, 6246170 + ... + 7950891.

It is an arithmetic number, because the mean of its divisors is an integer number (1515933886236).

Almost surely, 2^{12101021111021} is an apocalyptic number.

It is an amenable number.

12101021111021 is a deficient number, since it is larger than the sum of its proper divisors (26449978867).

12101021111021 is a wasteful number, since it uses less digits than its factorization.

12101021111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14198923.

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

Adding to 12101021111021 its reverse (12011112010121), we get a palindrome (24112133121142).

The spelling of 12101021111021 in words is "twelve trillion, one hundred one billion, twenty-one million, one hundred eleven thousand, twenty-one".