13201221345 has 32 divisors (see below), whose sum is σ = 23067120384. Its totient is φ = 6407520000.

The previous prime is 13201221311. The next prime is 13201221373. The reversal of 13201221345 is 54312210231.

13201221345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13201221345 - 2¹³ = 13201213153 is a prime.

It is a super-3 number, since 3×13201221345³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462906 + ... + 490595.

It is an arithmetic number, because the mean of its divisors is an integer number (720847512).

Almost surely, 2^13201221345 is an apocalyptic number.

13201221345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13201221345 is a deficient number, since it is larger than the sum of its proper divisors (9865899039).

13201221345 is a wasteful number, since it uses less digits than its factorization.

13201221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953593.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 13201221345 its reverse (54312210231), we get a palindrome (67513431576).

The spelling of 13201221345 in words is "thirteen billion, two hundred one million, two hundred twenty-one thousand, three hundred forty-five".