120221670 has 32 divisors (see below), whose sum is σ = 290453760. Its totient is φ = 31845600.

The previous prime is 120221663. The next prime is 120221677. The reversal of 120221670 is 76122021.

It is an interprime number because it is at equal distance from previous prime (120221663) and next prime (120221677).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221677) 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 15 ways as a sum of consecutive naturals, for example, 8740 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (9076680).

Almost surely, 2^120221670 is an apocalyptic number.

120221670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120221670 is an abundant number, since it is smaller than the sum of its proper divisors (170232090).

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

120221670 is a wasteful number, since it uses less digits than its factorization.

120221670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26700.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 120221670 is about 10964.5642868287. The cubic root of 120221670 is about 493.5459420628.

Adding to 120221670 its reverse (76122021), we get a palindrome (196343691).

The spelling of 120221670 in words is "one hundred twenty million, two hundred twenty-one thousand, six hundred seventy".