12221153013246 has 32 divisors (see below), whose sum is σ = 24469275547008. Its totient is φ = 4069223162400.

The previous prime is 12221153013233. The next prime is 12221153013247. The reversal of 12221153013246 is 64231035112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221153013247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169577356 + ... + 169649408.

It is an arithmetic number, because the mean of its divisors is an integer number (764664860844).

Almost surely, 2^{12221153013246} is an apocalyptic number.

12221153013246 is an abundant number, since it is smaller than the sum of its proper divisors (12248122533762).

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

12221153013246 is a wasteful number, since it uses less digits than its factorization.

12221153013246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102856.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 12221153013246 its reverse (64231035112221), we get a palindrome (76452188125467).

The spelling of 12221153013246 in words is "twelve trillion, two hundred twenty-one billion, one hundred fifty-three million, thirteen thousand, two hundred forty-six".