133303121112221 has 8 divisors (see below), whose sum is σ = 134442492961344. Its totient is φ = 132167125180800.

The previous prime is 133303121112151. The next prime is 133303121112251. The reversal of 133303121112221 is 122211121303331.

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 133303121112221 - 2¹⁸ = 133303120850077 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 (133303121112251) 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, 843900116 + ... + 844058061.

It is an arithmetic number, because the mean of its divisors is an integer number (16805311620168).

Almost surely, 2^{133303121112221} is an apocalyptic number.

It is an amenable number.

133303121112221 is a deficient number, since it is larger than the sum of its proper divisors (1139371849123).

133303121112221 is a wasteful number, since it uses less digits than its factorization.

133303121112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687958851.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 133303121112221 its reverse (122211121303331), we get a palindrome (255514242415552).

The spelling of 133303121112221 in words is "one hundred thirty-three trillion, three hundred three billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-one".