201221021200322 has 16 divisors (see below), whose sum is σ = 302619579708600. Its totient is φ = 100348020339840.

The previous prime is 201221021200321. The next prime is 201221021200337. The reversal of 201221021200322 is 223002120122102.

It can be written as a sum of positive squares in 4 ways, for example, as 35925746328481 + 165295274871841 = 5993809^2 + 12856721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201221021200294 and 201221021200303.

It is not an unprimeable number, because it can be changed into a prime (201221021200321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46000547 + ... + 50184582.

Almost surely, 2^{201221021200322} is an apocalyptic number.

201221021200322 is a deficient number, since it is larger than the sum of its proper divisors (101398558508278).

201221021200322 is a wasteful number, since it uses less digits than its factorization.

201221021200322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96187861.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201221021200322 its reverse (223002120122102), we get a palindrome (424223141322424).

The spelling of 201221021200322 in words is "two hundred one trillion, two hundred twenty-one billion, twenty-one million, two hundred thousand, three hundred twenty-two".