1200110212100 has 72 divisors (see below), whose sum is σ = 2617963981248. Its totient is φ = 477519523200.

The previous prime is 1200110212097. The next prime is 1200110212111. The reversal of 1200110212100 is 12120110021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18140282 + ... + 18206318.

Almost surely, 2^{1200110212100} is an apocalyptic number.

1200110212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200110212100 is an abundant number, since it is smaller than the sum of its proper divisors (1417853769148).

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

1200110212100 is a wasteful number, since it uses less digits than its factorization.

1200110212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67005 (or 66998 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200110212100 its reverse (12120110021), we get a palindrome (1212230322121).

The spelling of 1200110212100 in words is "one trillion, two hundred billion, one hundred ten million, two hundred twelve thousand, one hundred".