133210222121 has 2 divisors, whose sum is σ = 133210222122. Its totient is φ = 133210222120.

The previous prime is 133210222111. The next prime is 133210222139. The reversal of 133210222121 is 121222012331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74190864400 + 59019357721 = 272380^2 + 242939^2 .

It is a cyclic number.

It is not a de Polignac number, because 133210222121 - 2¹⁰ = 133210221097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133210222093 and 133210222102.

It is not a weakly prime, because it can be changed into another prime (133210222111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66605111060 + 66605111061.

It is an arithmetic number, because the mean of its divisors is an integer number (66605111061).

Almost surely, 2^133210222121 is an apocalyptic number.

It is an amenable number.

133210222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

133210222121 is an equidigital number, since it uses as much as digits as its factorization.

133210222121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 133210222121 its reverse (121222012331), we get a palindrome (254432234452).

The spelling of 133210222121 in words is "one hundred thirty-three billion, two hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".