1200221120203 has 8 divisors (see below), whose sum is σ = 1371689917920. Its totient is φ = 1028754481920.

The previous prime is 1200221120177. The next prime is 1200221120269. The reversal of 1200221120203 is 3020211220021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200221120203 is a prime.

It is a super-2 number, since 2×1200221120203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200221120003) 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, 911163 + ... + 1797403.

It is an arithmetic number, because the mean of its divisors is an integer number (171461239740).

Almost surely, 2^{1200221120203} is an apocalyptic number.

1200221120203 is a deficient number, since it is larger than the sum of its proper divisors (171468797717).

1200221120203 is an equidigital number, since it uses as much as digits as its factorization.

1200221120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079717.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200221120203 its reverse (3020211220021), we get a palindrome (4220432340224).

The spelling of 1200221120203 in words is "one trillion, two hundred billion, two hundred twenty-one million, one hundred twenty thousand, two hundred three".