13133221400 has 96 divisors (see below), whose sum is σ = 32913622560. Its totient is φ = 4844759040.

The previous prime is 13133221399. The next prime is 13133221417. The reversal of 13133221400 is 412233131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4634384 + ... + 4637216.

It is an arithmetic number, because the mean of its divisors is an integer number (342850235).

Almost surely, 2^13133221400 is an apocalyptic number.

13133221400 is a gapful number since it is divisible by the number (10) 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 13133221400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16456811280).

13133221400 is an abundant number, since it is smaller than the sum of its proper divisors (19780401160).

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

13133221400 is a wasteful number, since it uses less digits than its factorization.

13133221400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645 (or 4636 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13133221400 its reverse (412233131), we get a palindrome (13545454531).

The spelling of 13133221400 in words is "thirteen billion, one hundred thirty-three million, two hundred twenty-one thousand, four hundred".