133230213220 has 48 divisors (see below), whose sum is σ = 301343012208. Its totient is φ = 49186529280.

The previous prime is 133230213209. The next prime is 133230213227. The reversal of 133230213220 is 22312032331.

It can be written as a sum of positive squares in 8 ways, for example, as 8961272896 + 124268940324 = 94664^2 + 352518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133230213191 and 133230213200.

It is not an unprimeable number, because it can be changed into a prime (133230213227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2400180 + ... + 2455060.

It is an arithmetic number, because the mean of its divisors is an integer number (6277979421).

Almost surely, 2^133230213220 is an apocalyptic number.

133230213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133230213220 is an abundant number, since it is smaller than the sum of its proper divisors (168112798988).

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

133230213220 is a wasteful number, since it uses less digits than its factorization.

133230213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64240 (or 64238 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 133230213220 its reverse (22312032331), we get a palindrome (155542245551).

The spelling of 133230213220 in words is "one hundred thirty-three billion, two hundred thirty million, two hundred thirteen thousand, two hundred twenty".