13201221246 has 32 divisors (see below), whose sum is σ = 27084909600. Its totient is φ = 4286968320.

The previous prime is 13201221179. The next prime is 13201221263. The reversal of 13201221246 is 64212210231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136570 + ... + 212258.

It is an arithmetic number, because the mean of its divisors is an integer number (846403425).

Almost surely, 2^13201221246 is an apocalyptic number.

13201221246 is an abundant number, since it is smaller than the sum of its proper divisors (13883688354).

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

13201221246 is a wasteful number, since it uses less digits than its factorization.

13201221246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76444.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 13201221246 its reverse (64212210231), we get a palindrome (77413431477).

The spelling of 13201221246 in words is "thirteen billion, two hundred one million, two hundred twenty-one thousand, two hundred forty-six".