120221570 has 16 divisors (see below), whose sum is σ = 247313088. Its totient is φ = 41218800.

The previous prime is 120221567. The next prime is 120221581. The reversal of 120221570 is 75122021.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858656 + ... + 858795.

It is an arithmetic number, because the mean of its divisors is an integer number (15457068).

Almost surely, 2^120221570 is an apocalyptic number.

120221570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120221570 is an abundant number, since it is smaller than the sum of its proper divisors (127091518).

120221570 is a wasteful number, since it uses less digits than its factorization.

120221570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717465.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 120221570 is about 10964.5597266831. The cubic root of 120221570 is about 493.5458052195.

Adding to 120221570 its reverse (75122021), we get a palindrome (195343591).

The spelling of 120221570 in words is "one hundred twenty million, two hundred twenty-one thousand, five hundred seventy".