12221313250234 has 16 divisors (see below), whose sum is σ = 19998713831040. Its totient is φ = 5555086486560.

The previous prime is 12221313250231. The next prime is 12221313250297. The reversal of 12221313250234 is 43205231312221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12221313250196 and 12221313250205.

It is not an unprimeable number, because it can be changed into a prime (12221313250231) 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, 517794 + ... + 4970989.

It is an arithmetic number, because the mean of its divisors is an integer number (1249919614440).

Almost surely, 2^{12221313250234} is an apocalyptic number.

12221313250234 is a deficient number, since it is larger than the sum of its proper divisors (7777400580806).

12221313250234 is a wasteful number, since it uses less digits than its factorization.

12221313250234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590005.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 12221313250234 its reverse (43205231312221), we get a palindrome (55426544562455).

The spelling of 12221313250234 in words is "twelve trillion, two hundred twenty-one billion, three hundred thirteen million, two hundred fifty thousand, two hundred thirty-four".