1201021101200 has 60 divisors (see below), whose sum is σ = 2890578876528. Its totient is φ = 479555049600.

The previous prime is 1201021101191. The next prime is 1201021101299. The reversal of 1201021101200 is 21011201021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2441366 + ... + 2891765.

Almost surely, 2^{1201021101200} is an apocalyptic number.

1201021101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201021101200 is an abundant number, since it is smaller than the sum of its proper divisors (1689557775328).

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

1201021101200 is a wasteful number, since it uses less digits than its factorization.

1201021101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333712 (or 5333701 counting only the distinct ones).

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

Adding to 1201021101200 its reverse (21011201021), we get a palindrome (1222032302221).

The spelling of 1201021101200 in words is "one trillion, two hundred one billion, twenty-one million, one hundred one thousand, two hundred".