12101110020021 has 8 divisors (see below), whose sum is σ = 17601614574624. Its totient is φ = 7334006072720.

The previous prime is 12101110019987. The next prime is 12101110020031. The reversal of 12101110020021 is 12002001110121.

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 12101110020021 - 2¹⁰ = 12101110018997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101110019979 and 12101110020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101110020031) 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, 183350151786 + ... + 183350151851.

It is an arithmetic number, because the mean of its divisors is an integer number (2200201821828).

Almost surely, 2^{12101110020021} is an apocalyptic number.

12101110020021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12101110020021 is a deficient number, since it is larger than the sum of its proper divisors (5500504554603).

12101110020021 is a wasteful number, since it uses less digits than its factorization.

12101110020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366700303651.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12101110020021 its reverse (12002001110121), we get a palindrome (24103111130142).

The spelling of 12101110020021 in words is "twelve trillion, one hundred one billion, one hundred ten million, twenty thousand, twenty-one".