13420022021544 has 32 divisors (see below), whose sum is σ = 35008753101120. Its totient is φ = 4278847600896.

The previous prime is 13420022021533. The next prime is 13420022021551. The reversal of 13420022021544 is 44512022002431.

It is a happy number.

13420022021544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12155816497 + ... + 12155817600.

It is an arithmetic number, because the mean of its divisors is an integer number (1094023534410).

Almost surely, 2^{13420022021544} is an apocalyptic number.

It is an amenable number.

13420022021544 is an abundant number, since it is smaller than the sum of its proper divisors (21588731079576).

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

13420022021544 is a wasteful number, since it uses less digits than its factorization.

13420022021544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311634129 (or 24311634125 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 13420022021544 its reverse (44512022002431), we get a palindrome (57932044023975).

The spelling of 13420022021544 in words is "thirteen trillion, four hundred twenty billion, twenty-two million, twenty-one thousand, five hundred forty-four".