133220000000 has 144 divisors (see below), whose sum is σ = 332448562992. Its totient is φ = 53280000000.

The previous prime is 133219999963. The next prime is 133220000033. The reversal of 133220000000 is 22331.

It can be written as a sum of positive squares in 8 ways, for example, as 126485499904 + 6734500096 = 355648^2 + 82064^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19996670 + ... + 20003330.

Almost surely, 2^133220000000 is an apocalyptic number.

133220000000 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 133220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166224281496).

133220000000 is an abundant number, since it is smaller than the sum of its proper divisors (199228562992).

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

133220000000 is an frugal number, since it uses more digits than its factorization.

133220000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 133220000000 its reverse (22331), we get a palindrome (133220022331).

The spelling of 133220000000 in words is "one hundred thirty-three billion, two hundred twenty million", and thus it is an aban number.