120221240 has 64 divisors (see below), whose sum is σ = 284580000. Its totient is φ = 45642240.

The previous prime is 120221237. The next prime is 120221261. The reversal of 120221240 is 42122021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69911 + ... + 71609.

Almost surely, 2^120221240 is an apocalyptic number.

120221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142290000).

120221240 is an abundant number, since it is smaller than the sum of its proper divisors (164358760).

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

120221240 is a wasteful number, since it uses less digits than its factorization.

120221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 120221240 is about 10964.5446781889. The cubic root of 120221240 is about 493.5453536359.

Adding to 120221240 its reverse (42122021), we get a palindrome (162343261).

The spelling of 120221240 in words is "one hundred twenty million, two hundred twenty-one thousand, two hundred forty".