210201221200 has 30 divisors (see below), whose sum is σ = 505008434894. Its totient is φ = 84080488320.

The previous prime is 210201221183. The next prime is 210201221201. The reversal of 210201221200 is 2122102012.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 356605456 + 209844615744 = 18884^2 + 458088^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201221201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262751127 + ... + 262751926.

Almost surely, 2^210201221200 is an apocalyptic number.

210201221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201221200 is an abundant number, since it is smaller than the sum of its proper divisors (294807213694).

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

210201221200 is a wasteful number, since it uses less digits than its factorization.

210201221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525503071 (or 525503060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210201221200 its reverse (2122102012), we get a palindrome (212323323212).

It can be divided in two parts, 2102012 and 21200, that added together give a palindrome (2123212).

The spelling of 210201221200 in words is "two hundred ten billion, two hundred one million, two hundred twenty-one thousand, two hundred".