133122212 has 6 divisors (see below), whose sum is σ = 232963878. Its totient is φ = 66561104.

The previous prime is 133122193. The next prime is 133122217. The reversal of 133122212 is 212221331.

It can be written as a sum of positive squares in only one way, i.e., 129185956 + 3936256 = 11366^2 + 1984^2 .

It is not an unprimeable number, because it can be changed into a prime (133122217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16640273 + ... + 16640280.

It is an arithmetic number, because the mean of its divisors is an integer number (38827313).

Almost surely, 2^133122212 is an apocalyptic number.

It is an amenable number.

133122212 is a deficient number, since it is larger than the sum of its proper divisors (99841666).

133122212 is a wasteful number, since it uses less digits than its factorization.

133122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33280557 (or 33280555 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 133122212 is about 11537.8599402142. The cubic root of 133122212 is about 510.6031720381.

Adding to 133122212 its reverse (212221331), we get a palindrome (345343543).

The spelling of 133122212 in words is "one hundred thirty-three million, one hundred twenty-two thousand, two hundred twelve".