12210021101011 has 4 divisors (see below), whose sum is σ = 12260685089224. Its totient is φ = 12159357112800.

The previous prime is 12210021101009. The next prime is 12210021101017. The reversal of 12210021101011 is 11010112001221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12210021101011 - 2¹ = 12210021101009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210021100982 and 12210021101000.

It is not an unprimeable number, because it can be changed into a prime (12210021101017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25331993745 + ... + 25331994226.

It is an arithmetic number, because the mean of its divisors is an integer number (3065171272306).

Almost surely, 2^{12210021101011} is an apocalyptic number.

12210021101011 is a deficient number, since it is larger than the sum of its proper divisors (50663988213).

12210021101011 is an equidigital number, since it uses as much as digits as its factorization.

12210021101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50663988212.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12210021101011 its reverse (11010112001221), we get a palindrome (23220133102232).

The spelling of 12210021101011 in words is "twelve trillion, two hundred ten billion, twenty-one million, one hundred one thousand, eleven".