20133220232120 has 128 divisors (see below), whose sum is σ = 46277445614400. Its totient is φ = 7881203404800.

The previous prime is 20133220232119. The next prime is 20133220232159. The reversal of 20133220232120 is 2123202233102.

It is a super-2 number, since 2×20133220232120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282889340 + ... + 282960500.

Almost surely, 2^{20133220232120} is an apocalyptic number.

20133220232120 is a gapful number since it is divisible by the number (20) 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 20133220232120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23138722807200).

20133220232120 is an abundant number, since it is smaller than the sum of its proper divisors (26144225382280).

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

20133220232120 is a wasteful number, since it uses less digits than its factorization.

20133220232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71929 (or 71925 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20133220232120 its reverse (2123202233102), we get a palindrome (22256422465222).

The spelling of 20133220232120 in words is "twenty trillion, one hundred thirty-three billion, two hundred twenty million, two hundred thirty-two thousand, one hundred twenty".