120021201102020 has 48 divisors (see below), whose sum is σ = 266871910778928. Its totient is φ = 45184242216960.

The previous prime is 120021201102007. The next prime is 120021201102031. The reversal of 120021201102020 is 20201102120021.

It can be written as a sum of positive squares in 8 ways, for example, as 19504094326336 + 100517106775684 = 4416344^2 + 10025822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120021201101986 and 120021201102004.

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, 85930040 + ... + 87315600.

It is an arithmetic number, because the mean of its divisors is an integer number (5559831474561).

Almost surely, 2^{120021201102020} is an apocalyptic number.

120021201102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021201102020 is an abundant number, since it is smaller than the sum of its proper divisors (146850709676908).

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

120021201102020 is a wasteful number, since it uses less digits than its factorization.

120021201102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640360 (or 1640358 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120021201102020 its reverse (20201102120021), we get a palindrome (140222303222041).

The spelling of 120021201102020 in words is "one hundred twenty trillion, twenty-one billion, two hundred one million, one hundred two thousand, twenty".