1201212011200 has 84 divisors (see below), whose sum is σ = 3111297241960. Its totient is φ = 455196119040.

The previous prime is 1201212011191. The next prime is 1201212011203. The reversal of 1201212011200 is 21102121021.

It is a super-2 number, since 2×1201212011200² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201212011203) by changing a digit.

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, 19726377 + ... + 19787176.

Almost surely, 2^{1201212011200} is an apocalyptic number.

1201212011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201212011200 is an abundant number, since it is smaller than the sum of its proper divisors (1910085230760).

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

1201212011200 is a wasteful number, since it uses less digits than its factorization.

1201212011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39513594 (or 39513579 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201212011200 its reverse (21102121021), we get a palindrome (1222314132221).

The spelling of 1201212011200 in words is "one trillion, two hundred one billion, two hundred twelve million, eleven thousand, two hundred".