133020122020 has 48 divisors (see below), whose sum is σ = 302988189168. Its totient is φ = 48856739840.

The previous prime is 133020122017. The next prime is 133020122099. The reversal of 133020122020 is 20221020331.

It can be written as a sum of positive squares in 8 ways, for example, as 275029056 + 132745092964 = 16584^2 + 364342^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133020121985 and 133020122003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4757227 + ... + 4785106.

It is an arithmetic number, because the mean of its divisors is an integer number (6312253941).

Almost surely, 2^133020122020 is an apocalyptic number.

133020122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133020122020 is an abundant number, since it is smaller than the sum of its proper divisors (169968067148).

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

133020122020 is a wasteful number, since it uses less digits than its factorization.

133020122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9542400 (or 9542398 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 133020122020 its reverse (20221020331), we get a palindrome (153241142351).

The spelling of 133020122020 in words is "one hundred thirty-three billion, twenty million, one hundred twenty-two thousand, twenty".