20133223233220 has 12 divisors (see below), whose sum is σ = 42279768789804. Its totient is φ = 8053289293280.

The previous prime is 20133223233209. The next prime is 20133223233223. The reversal of 20133223233220 is 2233232233102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4246047632836 + 15887175600384 = 2060594^2 + 3985872^2 .

It is not an unprimeable number, because it can be changed into a prime (20133223233223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503330580811 + ... + 503330580850.

It is an arithmetic number, because the mean of its divisors is an integer number (3523314065817).

Almost surely, 2^{20133223233220} is an apocalyptic number.

20133223233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133223233220 is an abundant number, since it is smaller than the sum of its proper divisors (22146545556584).

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

20133223233220 is a wasteful number, since it uses less digits than its factorization.

20133223233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006661161670 (or 1006661161668 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 20133223233220 its reverse (2233232233102), we get a palindrome (22366455466322).

The spelling of 20133223233220 in words is "twenty trillion, one hundred thirty-three billion, two hundred twenty-three million, two hundred thirty-three thousand, two hundred twenty".