133221422 has 8 divisors (see below), whose sum is σ = 200483976. Its totient is φ = 66393432.

The previous prime is 133221409. The next prime is 133221427. The reversal of 133221422 is 224122331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 133221394 and 133221403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221427) 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, 107873 + ... + 109100.

It is an arithmetic number, because the mean of its divisors is an integer number (25060497).

Almost surely, 2^133221422 is an apocalyptic number.

133221422 is a deficient number, since it is larger than the sum of its proper divisors (67262554).

133221422 is a wasteful number, since it uses less digits than its factorization.

133221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217282.

The product of its digits is 576, while the sum is 20.

The square root of 133221422 is about 11542.1584636497. The cubic root of 133221422 is about 510.7299837375.

Adding to 133221422 its reverse (224122331), we get a palindrome (357343753).

Subtracting 133221422 from its reverse (224122331), we obtain a palindrome (90900909).

The spelling of 133221422 in words is "one hundred thirty-three million, two hundred twenty-one thousand, four hundred twenty-two".