12221313123122 has 16 divisors (see below), whose sum is σ = 18501595690200. Its totient is φ = 6054337605888.

The previous prime is 12221313123113. The next prime is 12221313123143. The reversal of 12221313123122 is 22132131312221.

12221313123122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8511216925201 + 3710096197921 = 2917399^2 + 1926161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12221313123091 and 12221313123100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55651703 + ... + 55870874.

Almost surely, 2^{12221313123122} is an apocalyptic number.

12221313123122 is a deficient number, since it is larger than the sum of its proper divisors (6280282567078).

12221313123122 is a wasteful number, since it uses less digits than its factorization.

12221313123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111523085.

The product of its digits is 1728, while the sum is 26.

Adding to 12221313123122 its reverse (22132131312221), we get a palindrome (34353444435343).

The spelling of 12221313123122 in words is "twelve trillion, two hundred twenty-one billion, three hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-two".