133221220064 has 24 divisors (see below), whose sum is σ = 262292671368. Its totient is φ = 66607208320.

The previous prime is 133221220063. The next prime is 133221220151. The reversal of 133221220064 is 460022122331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221220061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602879 + ... + 793665.

It is an arithmetic number, because the mean of its divisors is an integer number (10928861307).

Almost surely, 2^133221220064 is an apocalyptic number.

It is an amenable number.

133221220064 is a deficient number, since it is larger than the sum of its proper divisors (129071451304).

133221220064 is a wasteful number, since it uses less digits than its factorization.

133221220064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212618 (or 212610 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 133221220064 its reverse (460022122331), we get a palindrome (593243342395).

The spelling of 133221220064 in words is "one hundred thirty-three billion, two hundred twenty-one million, two hundred twenty thousand, sixty-four".