133213310202121 has 16 divisors (see below), whose sum is σ = 144494597232720. Its totient is φ = 122315035115520.

The previous prime is 133213310202109. The next prime is 133213310202143. The reversal of 133213310202121 is 121202013312331.

It can be written as a sum of positive squares in 8 ways, for example, as 4867318440000 + 128345991762121 = 2206200^2 + 11328989^2 .

It is a cyclic number.

It is not a de Polignac number, because 133213310202121 - 2³³ = 133204720267529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133213310202151) 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, 17028745 + ... + 23588233.

It is an arithmetic number, because the mean of its divisors is an integer number (9030912327045).

Almost surely, 2^{133213310202121} is an apocalyptic number.

It is an amenable number.

133213310202121 is a deficient number, since it is larger than the sum of its proper divisors (11281287030599).

133213310202121 is a wasteful number, since it uses less digits than its factorization.

133213310202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588684.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 133213310202121 its reverse (121202013312331), we get a palindrome (254415323514452).

The spelling of 133213310202121 in words is "one hundred thirty-three trillion, two hundred thirteen billion, three hundred ten million, two hundred two thousand, one hundred twenty-one".