1211200442300 has 36 divisors (see below), whose sum is σ = 2766636804120. Its totient is φ = 458981219520.

The previous prime is 1211200442299. The next prime is 1211200442311. The reversal of 1211200442300 is 32440021121.

It is a super-2 number, since 2×1211200442300² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318735059 + ... + 318738858.

Almost surely, 2^{1211200442300} is an apocalyptic number.

1211200442300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211200442300 is an abundant number, since it is smaller than the sum of its proper divisors (1555436361820).

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

1211200442300 is a wasteful number, since it uses less digits than its factorization.

1211200442300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637473950 (or 637473943 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1211200442300 its reverse (32440021121), we get a palindrome (1243640463421).

The spelling of 1211200442300 in words is "one trillion, two hundred eleven billion, two hundred million, four hundred forty-two thousand, three hundred".