133020212520 has 256 divisors, whose sum is σ = 450849369600. Its totient is φ = 31168327680.

The previous prime is 133020212519. The next prime is 133020212531. The reversal of 133020212520 is 25212020331.

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, 3191334 + ... + 3232746.

It is an arithmetic number, because the mean of its divisors is an integer number (1761130350).

Almost surely, 2^133020212520 is an apocalyptic number.

133020212520 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 133020212520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225424684800).

133020212520 is an abundant number, since it is smaller than the sum of its proper divisors (317829157080).

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

133020212520 is a wasteful number, since it uses less digits than its factorization.

133020212520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41540 (or 41536 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 133020212520 its reverse (25212020331), we get a palindrome (158232232851).

The spelling of 133020212520 in words is "one hundred thirty-three billion, twenty million, two hundred twelve thousand, five hundred twenty".