1201210200 has 144 divisors (see below), whose sum is σ = 4063932600. Its totient is φ = 317952000.

The previous prime is 1201210183. The next prime is 1201210201. The reversal of 1201210200 is 20121021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201210201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 247800 + ... + 252600.

Almost surely, 2^1201210200 is an apocalyptic number.

1201210200 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 1201210200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031966300).

1201210200 is an abundant number, since it is smaller than the sum of its proper divisors (2862722400).

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

1201210200 is a wasteful number, since it uses less digits than its factorization.

1201210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962 (or 4950 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1201210200 is about 34658.4794819392. The cubic root of 1201210200 is about 1063.0156795499.

Adding to 1201210200 its reverse (20121021), we get a palindrome (1221331221).

The spelling of 1201210200 in words is "one billion, two hundred one million, two hundred ten thousand, two hundred".