133332211 has 4 divisors (see below), whose sum is σ = 135322312. Its totient is φ = 131342112.

The previous prime is 133332197. The next prime is 133332217. The reversal of 133332211 is 112233331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133332211 - 2⁷ = 133332083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133332217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994950 + ... + 995083.

It is an arithmetic number, because the mean of its divisors is an integer number (33830578).

Almost surely, 2^133332211 is an apocalyptic number.

133332211 is a deficient number, since it is larger than the sum of its proper divisors (1990101).

133332211 is an equidigital number, since it uses as much as digits as its factorization.

133332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990100.

The product of its digits is 324, while the sum is 19.

The square root of 133332211 is about 11546.9567852313. The cubic root of 133332211 is about 510.8715215006.

Adding to 133332211 its reverse (112233331), we get a palindrome (245565542).

The spelling of 133332211 in words is "one hundred thirty-three million, three hundred thirty-two thousand, two hundred eleven".