120221133 has 4 divisors (see below), whose sum is σ = 160294848. Its totient is φ = 80147420.

The previous prime is 120221117. The next prime is 120221137. The reversal of 120221133 is 331122021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120221133 - 2⁴ = 120221117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221137) 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, 20036853 + ... + 20036858.

It is an arithmetic number, because the mean of its divisors is an integer number (40073712).

Almost surely, 2^120221133 is an apocalyptic number.

It is an amenable number.

120221133 is a deficient number, since it is larger than the sum of its proper divisors (40073715).

120221133 is an equidigital number, since it uses as much as digits as its factorization.

120221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40073714.

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

The square root of 120221133 is about 10964.5397988242. The cubic root of 120221133 is about 493.5452072132.

Adding to 120221133 its reverse (331122021), we get a palindrome (451343154).

The spelling of 120221133 in words is "one hundred twenty million, two hundred twenty-one thousand, one hundred thirty-three".