12101102212021 has 8 divisors (see below), whose sum is σ = 12178300704480. Its totient is φ = 12023905256688.

The previous prime is 12101102211949. The next prime is 12101102212051. The reversal of 12101102212021 is 12021220110121.

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 12101102212021 - 2¹⁹ = 12101101687733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101102211986 and 12101102212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101102212051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18298290 + ... + 18948076.

It is an arithmetic number, because the mean of its divisors is an integer number (1522287588060).

Almost surely, 2^{12101102212021} is an apocalyptic number.

It is an amenable number.

12101102212021 is a deficient number, since it is larger than the sum of its proper divisors (77198492459).

12101102212021 is a wasteful number, since it uses less digits than its factorization.

12101102212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12101102212021 its reverse (12021220110121), we get a palindrome (24122322322142).

The spelling of 12101102212021 in words is "twelve trillion, one hundred one billion, one hundred two million, two hundred twelve thousand, twenty-one".