133221104 has 10 divisors (see below), whose sum is σ = 258115920. Its totient is φ = 66610544.

The previous prime is 133221091. The next prime is 133221107. The reversal of 133221104 is 401122331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4163144 + ... + 4163175.

It is an arithmetic number, because the mean of its divisors is an integer number (25811592).

Almost surely, 2^133221104 is an apocalyptic number.

It is an amenable number.

133221104 is a deficient number, since it is larger than the sum of its proper divisors (124894816).

133221104 is an equidigital number, since it uses as much as digits as its factorization.

133221104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326327 (or 8326321 counting only the distinct ones).

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

The square root of 133221104 is about 11542.1446880552. The cubic root of 133221104 is about 510.7295773657.

Adding to 133221104 its reverse (401122331), we get a palindrome (534343435).

The spelling of 133221104 in words is "one hundred thirty-three million, two hundred twenty-one thousand, one hundred four".