13401221203104 has 192 divisors, whose sum is σ = 41262199372800. Its totient is φ = 3729391699968.

The previous prime is 13401221203099. The next prime is 13401221203133. The reversal of 13401221203104 is 40130212210431.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2334967 + ... + 5679305.

It is an arithmetic number, because the mean of its divisors is an integer number (214907288400).

Almost surely, 2^{13401221203104} is an apocalyptic number.

13401221203104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13401221203104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20631099686400).

13401221203104 is an abundant number, since it is smaller than the sum of its proper divisors (27860978169696).

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

13401221203104 is a wasteful number, since it uses less digits than its factorization.

13401221203104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344515 (or 3344507 counting only the distinct ones).

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

Adding to 13401221203104 its reverse (40130212210431), we get a palindrome (53531433413535).

The spelling of 13401221203104 in words is "thirteen trillion, four hundred one billion, two hundred twenty-one million, two hundred three thousand, one hundred four".