201221122030300 has 36 divisors (see below), whose sum is σ = 455634610237296. Its totient is φ = 76988951036800.

The previous prime is 201221122030223. The next prime is 201221122030319. The reversal of 201221122030300 is 3030221122102.

It is a super-2 number, since 2×201221122030300² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43743719881 + ... + 43743724480.

It is an arithmetic number, because the mean of its divisors is an integer number (12656516951036).

Almost surely, 2^{201221122030300} is an apocalyptic number.

201221122030300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201221122030300 is an abundant number, since it is smaller than the sum of its proper divisors (254413488206996).

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

201221122030300 is a wasteful number, since it uses less digits than its factorization.

201221122030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87487444398 (or 87487444391 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201221122030300 its reverse (3030221122102), we get a palindrome (204251343152402).

The spelling of 201221122030300 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred twenty-two million, thirty thousand, three hundred".