1201204013200 has 240 divisors, whose sum is σ = 3076896972240. Its totient is φ = 449086095360.

The previous prime is 1201204013159. The next prime is 1201204013201. The reversal of 1201204013200 is 23104021021.

It can be written as a sum of positive squares in 24 ways, for example, as 140823069696 + 1060380943504 = 375264^2 + 1029748^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1201204013201) 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 47 ways as a sum of consecutive naturals, for example, 671437906 + ... + 671439694.

It is an arithmetic number, because the mean of its divisors is an integer number (12820404051).

Almost surely, 2^{1201204013200} is an apocalyptic number.

1201204013200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201204013200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538448486120).

1201204013200 is an abundant number, since it is smaller than the sum of its proper divisors (1875692959040).

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

1201204013200 is a wasteful number, since it uses less digits than its factorization.

1201204013200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1201204013200 its reverse (23104021021), we get a palindrome (1224308034221).

The spelling of 1201204013200 in words is "one trillion, two hundred one billion, two hundred four million, thirteen thousand, two hundred".