120220001020 has 48 divisors (see below), whose sum is σ = 289399799808. Its totient is φ = 41093743680.

The previous prime is 120220000981. The next prime is 120220001047. The reversal of 120220001020 is 20100022021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 120220000988 and 120220001006.

It is a congruent number.

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, 1250812 + ... + 1343491.

It is an arithmetic number, because the mean of its divisors is an integer number (6029162496).

Almost surely, 2^120220001020 is an apocalyptic number.

120220001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120220001020 is an abundant number, since it is smaller than the sum of its proper divisors (169179798788).

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

120220001020 is a wasteful number, since it uses less digits than its factorization.

120220001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594650 (or 2594648 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120220001020 its reverse (20100022021), we get a palindrome (140320023041).

The spelling of 120220001020 in words is "one hundred twenty billion, two hundred twenty million, one thousand, twenty".