12221011110012 has 24 divisors (see below), whose sum is σ = 28523777659776. Its totient is φ = 4072515360048.

The previous prime is 12221011109963. The next prime is 12221011110017. The reversal of 12221011110012 is 21001111012221.

It is a happy number.

12221011110012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12221011110012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221011109973 and 12221011110000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221011110017) 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, 144332158 + ... + 144416805.

It is an arithmetic number, because the mean of its divisors is an integer number (1188490735824).

Almost surely, 2^{12221011110012} is an apocalyptic number.

12221011110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12221011110012 is an abundant number, since it is smaller than the sum of its proper divisors (16302766549764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221011110012 is a wasteful number, since it uses less digits than its factorization.

12221011110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288752497 (or 288752495 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12221011110012 its reverse (21001111012221), we get a palindrome (33222122122233).

The spelling of 12221011110012 in words is "twelve trillion, two hundred twenty-one billion, eleven million, one hundred ten thousand, twelve".