120020210120 has 64 divisors (see below), whose sum is σ = 287583559920. Its totient is φ = 44922855424.

The previous prime is 120020210099. The next prime is 120020210129. The reversal of 120020210120 is 21012020021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 85927541956 + 34092668164 = 293134^2 + 184642^2 .

It is not an unprimeable number, because it can be changed into a prime (120020210129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392477 + ... + 627756.

Almost surely, 2^120020210120 is an apocalyptic number.

120020210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020210120 is an abundant number, since it is smaller than the sum of its proper divisors (167563349800).

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

120020210120 is a wasteful number, since it uses less digits than its factorization.

120020210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020434 (or 1020430 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120020210120 its reverse (21012020021), we get a palindrome (141032230141).

The spelling of 120020210120 in words is "one hundred twenty billion, twenty million, two hundred ten thousand, one hundred twenty".