133001331011221 has 8 divisors (see below), whose sum is σ = 137296675173888. Its totient is φ = 128706298014000.

The previous prime is 133001331011201. The next prime is 133001331011251. The reversal of 133001331011221 is 122110133100331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133001331011221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133001331011192 and 133001331011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133001331011201) 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, 76922545 + ... + 78632566.

It is an arithmetic number, because the mean of its divisors is an integer number (17162084396736).

Almost surely, 2^{133001331011221} is an apocalyptic number.

It is an amenable number.

133001331011221 is a deficient number, since it is larger than the sum of its proper divisors (4295344162667).

133001331011221 is a wasteful number, since it uses less digits than its factorization.

133001331011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155582723.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 133001331011221 its reverse (122110133100331), we get a palindrome (255111464111552).

The spelling of 133001331011221 in words is "one hundred thirty-three trillion, one billion, three hundred thirty-one million, eleven thousand, two hundred twenty-one".