12211323112021 has 16 divisors (see below), whose sum is σ = 13903256430720. Its totient is φ = 10616540566720.

The previous prime is 12211323111959. The next prime is 12211323112073. The reversal of 12211323112021 is 12021132311221.

It is a happy number.

12211323112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12211323112021 - 2¹⁷ = 12211322980949 is a prime.

It is a super-2 number, since 2×12211323112021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211323111983 and 12211323112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211323112081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3202510 + ... + 5888863.

It is an arithmetic number, because the mean of its divisors is an integer number (868953526920).

Almost surely, 2^{12211323112021} is an apocalyptic number.

12211323112021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12211323112021 is a deficient number, since it is larger than the sum of its proper divisors (1691933318699).

12211323112021 is a wasteful number, since it uses less digits than its factorization.

12211323112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9096716.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12211323112021 its reverse (12021132311221), we get a palindrome (24232455423242).

The spelling of 12211323112021 in words is "twelve trillion, two hundred eleven billion, three hundred twenty-three million, one hundred twelve thousand, twenty-one".