1200246420020 has 48 divisors (see below), whose sum is σ = 2562537810000. Its totient is φ = 472099000320.

The previous prime is 1200246420019. The next prime is 1200246420083. The reversal of 1200246420020 is 200246420021.

It can be written as a sum of positive squares in 8 ways, for example, as 310208897296 + 890037522724 = 556964^2 + 943418^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4392356 + ... + 4657604.

It is an arithmetic number, because the mean of its divisors is an integer number (53386204375).

Almost surely, 2^{1200246420020} is an apocalyptic number.

1200246420020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200246420020 is an abundant number, since it is smaller than the sum of its proper divisors (1362291389980).

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

1200246420020 is a wasteful number, since it uses less digits than its factorization.

1200246420020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269028 (or 269026 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Subtracting from 1200246420020 its reverse (200246420021), we obtain a palindrome (999999999999).

The spelling of 1200246420020 in words is "one trillion, two hundred billion, two hundred forty-six million, four hundred twenty thousand, twenty".