201031300221221 has 16 divisors (see below), whose sum is σ = 203887058776128. Its totient is φ = 198186251328000.

The previous prime is 201031300221217. The next prime is 201031300221251. The reversal of 201031300221221 is 122122003130102.

It is a cyclic number.

It is not a de Polignac number, because 201031300221221 - 2² = 201031300221217 is a prime.

It is a super-3 number, since 3×201031300221221³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201031300221193 and 201031300221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201031300221211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84860021 + ... + 87196821.

It is an arithmetic number, because the mean of its divisors is an integer number (12742941173508).

Almost surely, 2^{201031300221221} is an apocalyptic number.

It is an amenable number.

201031300221221 is a deficient number, since it is larger than the sum of its proper divisors (2855758554907).

201031300221221 is a wasteful number, since it uses less digits than its factorization.

201031300221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339092.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201031300221221 its reverse (122122003130102), we get a palindrome (323153303351323).

The spelling of 201031300221221 in words is "two hundred one trillion, thirty-one billion, three hundred million, two hundred twenty-one thousand, two hundred twenty-one".