1200221202122 has 8 divisors (see below), whose sum is σ = 1800336518400. Its totient is φ = 600109029324.

The previous prime is 1200221202119. The next prime is 1200221202151. The reversal of 1200221202122 is 2212021220021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1200221202122.

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 3 ways as a sum of consecutive naturals, for example, 848279 + ... + 1766357.

It is an arithmetic number, because the mean of its divisors is an integer number (225042064800).

Almost surely, 2^{1200221202122} is an apocalyptic number.

1200221202122 is a deficient number, since it is larger than the sum of its proper divisors (600115316278).

1200221202122 is an equidigital number, since it uses as much as digits as its factorization.

1200221202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571740.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1200221202122 its reverse (2212021220021), we get a palindrome (3412242422143).

The spelling of 1200221202122 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred two thousand, one hundred twenty-two".