201221331011300 has 36 divisors (see below), whose sum is σ = 436652811806400. Its totient is φ = 80488067241120.

The previous prime is 201221331011291. The next prime is 201221331011341. The reversal of 201221331011300 is 3110133122102.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11842001 + ... + 23295399.

It is an arithmetic number, because the mean of its divisors is an integer number (12129244772400).

Almost surely, 2^{201221331011300} is an apocalyptic number.

201221331011300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201221331011300 is an abundant number, since it is smaller than the sum of its proper divisors (235431480795100).

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

201221331011300 is a wasteful number, since it uses less digits than its factorization.

201221331011300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11629100 (or 11629093 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 201221331011300 its reverse (3110133122102), we get a palindrome (204331464133402).

It can be divided in two parts, 2012 and 21331011300, that added together give a palindrome (21331013312).

The spelling of 201221331011300 in words is "two hundred one trillion, two hundred twenty-one billion, three hundred thirty-one million, eleven thousand, three hundred".