1200321100202 has 16 divisors (see below), whose sum is σ = 2057734955520. Its totient is φ = 514412918448.

The previous prime is 1200321100073. The next prime is 1200321100207. The reversal of 1200321100202 is 2020011230021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1200321100207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129338 + ... + 1554789.

It is an arithmetic number, because the mean of its divisors is an integer number (128608434720).

Almost surely, 2^{1200321100202} is an apocalyptic number.

1200321100202 is a deficient number, since it is larger than the sum of its proper divisors (857413855318).

1200321100202 is a wasteful number, since it uses less digits than its factorization.

1200321100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735045.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1200321100202 its reverse (2020011230021), we get a palindrome (3220332330223).

The spelling of 1200321100202 in words is "one trillion, two hundred billion, three hundred twenty-one million, one hundred thousand, two hundred two".