133011222 has 16 divisors (see below), whose sum is σ = 271683072. Its totient is φ = 43393640.

The previous prime is 133011217. The next prime is 133011227. The reversal of 133011222 is 222110331.

It is an interprime number because it is at equal distance from previous prime (133011217) and next prime (133011227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133011227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235554 + ... + 236117.

It is an arithmetic number, because the mean of its divisors is an integer number (16980192).

Almost surely, 2^133011222 is an apocalyptic number.

133011222 is an abundant number, since it is smaller than the sum of its proper divisors (138671850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133011222 is a wasteful number, since it uses less digits than its factorization.

133011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471723.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 133011222 is about 11533.0491198122. The cubic root of 133011222 is about 510.4612282746.

Adding to 133011222 its reverse (222110331), we get a palindrome (355121553).

The spelling of 133011222 in words is "one hundred thirty-three million, eleven thousand, two hundred twenty-two".