1200000201100 has 18 divisors (see below), whose sum is σ = 2604000436604. Its totient is φ = 480000080400.

The previous prime is 1200000201089. The next prime is 1200000201107. The reversal of 1200000201100 is 11020000021.

It is not an unprimeable number, because it can be changed into a prime (1200000201107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6000000906 + ... + 6000001105.

Almost surely, 2^{1200000201100} is an apocalyptic number.

1200000201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200000201100 is an abundant number, since it is smaller than the sum of its proper divisors (1404000235504).

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

1200000201100 is a wasteful number, since it uses less digits than its factorization.

1200000201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12000002025 (or 12000002018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1200000201100 its reverse (11020000021), we get a palindrome (1211020201121).

The spelling of 1200000201100 in words is "one trillion, two hundred billion, two hundred one thousand, one hundred".