120221251 has 8 divisors (see below), whose sum is σ = 123632240. Its totient is φ = 116818848.

The previous prime is 120221237. The next prime is 120221261. The reversal of 120221251 is 152122021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120221251 - 2⁹ = 120220739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120221201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35260 + ... + 38518.

It is an arithmetic number, because the mean of its divisors is an integer number (15454030).

Almost surely, 2^120221251 is an apocalyptic number.

120221251 is a deficient number, since it is larger than the sum of its proper divisors (3410989).

120221251 is an equidigital number, since it uses as much as digits as its factorization.

120221251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 120221251 is about 10964.5451798057. The cubic root of 120221251 is about 493.5453686887.

Adding to 120221251 its reverse (152122021), we get a palindrome (272343272).

The spelling of 120221251 in words is "one hundred twenty million, two hundred twenty-one thousand, two hundred fifty-one".