133321223121 has 16 divisors (see below), whose sum is σ = 179518335360. Its totient is φ = 88002760320.

The previous prime is 133321223093. The next prime is 133321223149. The reversal of 133321223121 is 121322123331.

It is an interprime number because it is at equal distance from previous prime (133321223093) and next prime (133321223149).

It is not a de Polignac number, because 133321223121 - 2⁹ = 133321222609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133321223091 and 133321223100.

It is not an unprimeable number, because it can be changed into a prime (133321223171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1931635 + ... + 1999463.

It is an arithmetic number, because the mean of its divisors is an integer number (11219895960).

Almost surely, 2^133321223121 is an apocalyptic number.

It is an amenable number.

133321223121 is a deficient number, since it is larger than the sum of its proper divisors (46197112239).

133321223121 is a wasteful number, since it uses less digits than its factorization.

133321223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74296.

The product of its digits is 1296, while the sum is 24.

Adding to 133321223121 its reverse (121322123331), we get a palindrome (254643346452).

The spelling of 133321223121 in words is "one hundred thirty-three billion, three hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty-one".