120221471 has 4 divisors (see below), whose sum is σ = 123153744. Its totient is φ = 117289200.

The previous prime is 120221461. The next prime is 120221477. The reversal of 120221471 is 174122021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174122021 = 1867 ⋅93263.

It is a cyclic number.

It is not a de Polignac number, because 120221471 - 2⁶ = 120221407 is a prime.

It is a super-3 number, since 3×120221471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221477) 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 3 ways as a sum of consecutive naturals, for example, 1466075 + ... + 1466156.

It is an arithmetic number, because the mean of its divisors is an integer number (30788436).

Almost surely, 2^120221471 is an apocalyptic number.

120221471 is a deficient number, since it is larger than the sum of its proper divisors (2932273).

120221471 is an equidigital number, since it uses as much as digits as its factorization.

120221471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932272.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 120221471 is about 10964.5552121370. Note that the first 3 decimals coincide. The cubic root of 120221471 is about 493.5456697445.

Adding to 120221471 its reverse (174122021), we get a palindrome (294343492).

The spelling of 120221471 in words is "one hundred twenty million, two hundred twenty-one thousand, four hundred seventy-one".