1201221201200 has 30 divisors (see below), whose sum is σ = 2885933936844. Its totient is φ = 480488480320.

The previous prime is 1201221201161. The next prime is 1201221201247. The reversal of 1201221201200 is 21021221021.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1501526102 + ... + 1501526901.

Almost surely, 2^{1201221201200} is an apocalyptic number.

1201221201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201221201200 is an abundant number, since it is smaller than the sum of its proper divisors (1684712735644).

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

1201221201200 is a wasteful number, since it uses less digits than its factorization.

1201221201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003053021 (or 3003053010 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201221201200 its reverse (21021221021), we get a palindrome (1222242422221).

The spelling of 1201221201200 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two hundred one thousand, two hundred".