133211121211 has 4 divisors (see below), whose sum is σ = 152241281392. Its totient is φ = 114180961032.

The previous prime is 133211121209. The next prime is 133211121223. The reversal of 133211121211 is 112121112331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112121112331 = 89 ⋅1259787779.

It is a cyclic number.

It is not a de Polignac number, because 133211121211 - 2¹ = 133211121209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133211125211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9515080080 + ... + 9515080093.

It is an arithmetic number, because the mean of its divisors is an integer number (38060320348).

Almost surely, 2^133211121211 is an apocalyptic number.

133211121211 is a deficient number, since it is larger than the sum of its proper divisors (19030160181).

133211121211 is an equidigital number, since it uses as much as digits as its factorization.

133211121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19030160180.

The product of its digits is 72, while the sum is 19.

Adding to 133211121211 its reverse (112121112331), we get a palindrome (245332233542).

The spelling of 133211121211 in words is "one hundred thirty-three billion, two hundred eleven million, one hundred twenty-one thousand, two hundred eleven".