1200020101010 has 16 divisors (see below), whose sum is σ = 2160075107736. Its totient is φ = 479999390208.

The previous prime is 1200020100989. The next prime is 1200020101013. The reversal of 1200020101010 is 101010200021.

It can be written as a sum of positive squares in 4 ways, for example, as 1199601039169 + 419061841 = 1095263^2 + 20471^2 .

It is not an unprimeable number, because it can be changed into a prime (1200020101013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482849 + ... + 1622708.

Almost surely, 2^{1200020101010} is an apocalyptic number.

1200020101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200020101010 is a deficient number, since it is larger than the sum of its proper divisors (960055006726).

1200020101010 is a wasteful number, since it uses less digits than its factorization.

1200020101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162557.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1200020101010 its reverse (101010200021), we get a palindrome (1301030301031).

The spelling of 1200020101010 in words is "one trillion, two hundred billion, twenty million, one hundred one thousand, ten".