120221075720 has 32 divisors (see below), whose sum is σ = 270515882520. Its totient is φ = 48085148160.

The previous prime is 120221075617. The next prime is 120221075729. The reversal of 120221075720 is 27570122021.

It can be written as a sum of positive squares in 4 ways, for example, as 119076065476 + 1145010244 = 345074^2 + 33838^2 .

It is not an unprimeable number, because it can be changed into a prime (120221075729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540614 + ... + 729866.

Almost surely, 2^120221075720 is an apocalyptic number.

120221075720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221075720 is an abundant number, since it is smaller than the sum of its proper divisors (150294806800).

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

120221075720 is a wasteful number, since it uses less digits than its factorization.

120221075720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205145 (or 205141 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

Adding to 120221075720 its reverse (27570122021), we get a palindrome (147791197741).

The spelling of 120221075720 in words is "one hundred twenty billion, two hundred twenty-one million, seventy-five thousand, seven hundred twenty".