1200200020002 has 24 divisors (see below), whose sum is σ = 2619141535920. Its totient is φ = 397188495000.

The previous prime is 1200200019947. The next prime is 1200200020007. The reversal of 1200200020002 is 2000200020021.

It is a Harshad number since it is a multiple of its sum of digits (9).

1200200020002 is a modest number, since divided by 20002 gives 12002 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1200200020007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239845624 + ... + 239850627.

It is an arithmetic number, because the mean of its divisors is an integer number (109130897330).

Almost surely, 2^{1200200020002} is an apocalyptic number.

1200200020002 is an abundant number, since it is smaller than the sum of its proper divisors (1418941515918).

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

1200200020002 is a wasteful number, since it uses less digits than its factorization.

1200200020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479696398 (or 479696395 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 1200200020002 its reverse (2000200020021), we get a palindrome (3200400040023).

The spelling of 1200200020002 in words is "one trillion, two hundred billion, two hundred million, twenty thousand, two".