133221021000989 has 8 divisors (see below), whose sum is σ = 141058847704248. Its totient is φ = 125383338304000.

The previous prime is 133221021000971. The next prime is 133221021001001. The reversal of 133221021000989 is 989000120122331.

It can be written as a sum of positive squares in 4 ways, for example, as 79771513620100 + 53449507380889 = 8931490^2 + 7310917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133221021000989 - 2³² = 133216726033693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221021030989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34094042 + ... + 37800075.

It is an arithmetic number, because the mean of its divisors is an integer number (17632355963031).

Almost surely, 2^{133221021000989} is an apocalyptic number.

It is an amenable number.

133221021000989 is a deficient number, since it is larger than the sum of its proper divisors (7837826703259).

133221021000989 is a wasteful number, since it uses less digits than its factorization.

133221021000989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72003135.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 133221021000989 in words is "one hundred thirty-three trillion, two hundred twenty-one billion, twenty-one million, nine hundred eighty-nine", and thus it is an aban number.