133133312220 has 48 divisors (see below), whose sum is σ = 381442427520. Its totient is φ = 34676582976.

The previous prime is 133133312077. The next prime is 133133312261. The reversal of 133133312220 is 22213331331.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25798450 + ... + 25803609.

It is an arithmetic number, because the mean of its divisors is an integer number (7946717240).

Almost surely, 2^133133312220 is an apocalyptic number.

133133312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133133312220 is an abundant number, since it is smaller than the sum of its proper divisors (248309115300).

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

133133312220 is a wasteful number, since it uses less digits than its factorization.

133133312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51602114 (or 51602112 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 133133312220 its reverse (22213331331), we get a palindrome (155346643551).

The spelling of 133133312220 in words is "one hundred thirty-three billion, one hundred thirty-three million, three hundred twelve thousand, two hundred twenty".