120221120122020 has 144 divisors (see below), whose sum is σ = 368765318703600. Its totient is φ = 31699835904000.

The previous prime is 120221120122013. The next prime is 120221120122067. The reversal of 120221120122020 is 20221021122021.

It is a happy number.

120221120122020 is a `hidden beast` number, since 1 + 2 + 0 + 221 + 1 + 201 + 220 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2477960815716 + 117743159306304 = 1574154^2 + 10850952^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120221120121984 and 120221120122002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9490156 + ... + 18179804.

It is an arithmetic number, because the mean of its divisors is an integer number (2560870268775).

Almost surely, 2^{120221120122020} is an apocalyptic number.

120221120122020 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 120221120122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184382659351800).

120221120122020 is an abundant number, since it is smaller than the sum of its proper divisors (248544198581580).

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

120221120122020 is a wasteful number, since it uses less digits than its factorization.

120221120122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690526 (or 8690521 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120221120122020 its reverse (20221021122021), we get a palindrome (140442141244041).

The spelling of 120221120122020 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, twenty".