1200221211300 has 36 divisors (see below), whose sum is σ = 3472640038896. Its totient is φ = 320058989600.

The previous prime is 1200221211271. The next prime is 1200221211307. The reversal of 1200221211300 is 31121220021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1200221211300.

It is not an unprimeable number, because it can be changed into a prime (1200221211307) 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, 2000368386 + ... + 2000368985.

Almost surely, 2^{1200221211300} is an apocalyptic number.

1200221211300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200221211300 is an abundant number, since it is smaller than the sum of its proper divisors (2272418827596).

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

1200221211300 is a wasteful number, since it uses less digits than its factorization.

1200221211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000737388 (or 4000737381 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1200221211300 its reverse (31121220021), we get a palindrome (1231342431321).

The spelling of 1200221211300 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred eleven thousand, three hundred".