133212230424 has 256 divisors, whose sum is σ = 467737804800. Its totient is φ = 34183171584.

The previous prime is 133212230363. The next prime is 133212230447. The reversal of 133212230424 is 424032212331.

133212230424 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 1 + 2 + 230 + 424 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 635689 + ... + 818855.

It is an arithmetic number, because the mean of its divisors is an integer number (1827100800).

Almost surely, 2^133212230424 is an apocalyptic number.

133212230424 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 133212230424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233868902400).

133212230424 is an abundant number, since it is smaller than the sum of its proper divisors (334525574376).

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

133212230424 is a wasteful number, since it uses less digits than its factorization.

133212230424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183239 (or 183229 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 133212230424 its reverse (424032212331), we get a palindrome (557244442755).

The spelling of 133212230424 in words is "one hundred thirty-three billion, two hundred twelve million, two hundred thirty thousand, four hundred twenty-four".