12221000231111 has 8 divisors (see below), whose sum is σ = 14264024586240. Its totient is φ = 10252267670808.

The previous prime is 12221000231093. The next prime is 12221000231119. The reversal of 12221000231111 is 11113200012221.

It is a happy number.

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 12221000231111 - 2³⁴ = 12203820361927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221000231111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221000231119) 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, 18572948351 + ... + 18572949008.

It is an arithmetic number, because the mean of its divisors is an integer number (1783003073280).

Almost surely, 2^{12221000231111} is an apocalyptic number.

12221000231111 is a deficient number, since it is larger than the sum of its proper divisors (2043024355129).

12221000231111 is an equidigital number, since it uses as much as digits as its factorization.

12221000231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37145897413.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12221000231111 its reverse (11113200012221), we get a palindrome (23334200243332).

The spelling of 12221000231111 in words is "twelve trillion, two hundred twenty-one billion, two hundred thirty-one thousand, one hundred eleven".