120002020 has 12 divisors (see below), whose sum is σ = 252004284. Its totient is φ = 48000800.

The previous prime is 120001939. The next prime is 120002021. The reversal of 120002020 is 20200021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94012416 + 25989604 = 9696^2 + 5098^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120001994 and 120002012.

It is not an unprimeable number, because it can be changed into a prime (120002021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000031 + ... + 3000070.

It is an arithmetic number, because the mean of its divisors is an integer number (21000357).

Almost surely, 2^120002020 is an apocalyptic number.

120002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120002020 is an abundant number, since it is smaller than the sum of its proper divisors (132002264).

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

120002020 is a wasteful number, since it uses less digits than its factorization.

120002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000110 (or 6000108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 120002020 is about 10954.5433496792. The cubic root of 120002020 is about 493.2451824886.

Adding to 120002020 its reverse (20200021), we get a palindrome (140202041).

The spelling of 120002020 in words is "one hundred twenty million, two thousand, twenty".