120000200020000 has 60 divisors (see below), whose sum is σ = 295218492128406. Its totient is φ = 48000080000000.

The previous prime is 120000200019991. The next prime is 120000200020081. The reversal of 120000200020000 is 20002000021.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 4234392679696 + 115765807340304 = 2057764^2 + 10759452^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2999985001 + ... + 3000025000.

Almost surely, 2^{120000200020000} is an apocalyptic number.

120000200020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120000200020000 is an abundant number, since it is smaller than the sum of its proper divisors (175218292108406).

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

120000200020000 is an frugal number, since it uses more digits than its factorization.

120000200020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000010031 (or 6000010008 counting only the distinct ones).

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

Adding to 120000200020000 its reverse (20002000021), we get a palindrome (120020202020021).

The spelling of 120000200020000 in words is "one hundred twenty trillion, two hundred million, twenty thousand".