120221310 has 64 divisors (see below), whose sum is σ = 317965824. Its totient is φ = 28848000.

The previous prime is 120221293. The next prime is 120221323. The reversal of 120221310 is 13122021.

It is a super-2 number, since 2×120221310² = 28906326756232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31527 + ... + 35133.

It is an arithmetic number, because the mean of its divisors is an integer number (4968216).

Almost surely, 2^120221310 is an apocalyptic number.

120221310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120221310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158982912).

120221310 is an abundant number, since it is smaller than the sum of its proper divisors (197744514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120221310 is a wasteful number, since it uses less digits than its factorization.

120221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 120221310 is about 10964.5478702954. The cubic root of 120221310 is about 493.5454494264.

Adding to 120221310 its reverse (13122021), we get a palindrome (133343331).

The spelling of 120221310 in words is "one hundred twenty million, two hundred twenty-one thousand, three hundred ten".