12211202021101 has 4 divisors (see below), whose sum is σ = 12211547366592. Its totient is φ = 12210856675612.

The previous prime is 12211202021033. The next prime is 12211202021129. The reversal of 12211202021101 is 10112020211221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12211202021101 - 2⁷ = 12211202020973 is a prime.

It is a super-2 number, since 2×12211202021101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211202021191) 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, 172619701 + ... + 172690426.

It is an arithmetic number, because the mean of its divisors is an integer number (3052886841648).

Almost surely, 2^{12211202021101} is an apocalyptic number.

It is an amenable number.

12211202021101 is a deficient number, since it is larger than the sum of its proper divisors (345345491).

12211202021101 is an equidigital number, since it uses as much as digits as its factorization.

12211202021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345345490.

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

Adding to 12211202021101 its reverse (10112020211221), we get a palindrome (22323222232322).

The spelling of 12211202021101 in words is "twelve trillion, two hundred eleven billion, two hundred two million, twenty-one thousand, one hundred one".