201020101112221 has 8 divisors (see below), whose sum is σ = 205007807607264. Its totient is φ = 197039612187600.

The previous prime is 201020101112191. The next prime is 201020101112239. The reversal of 201020101112221 is 122211101020102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201020101112221 - 2⁴⁷ = 60282612756893 is a prime.

It is a super-4 number, since 4×201020101112221⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020101112195 and 201020101112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020101142221) 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, 1804336351 + ... + 1804447756.

It is an arithmetic number, because the mean of its divisors is an integer number (25625975950908).

Almost surely, 2^{201020101112221} is an apocalyptic number.

It is an amenable number.

201020101112221 is a deficient number, since it is larger than the sum of its proper divisors (3987706495043).

201020101112221 is a wasteful number, since it uses less digits than its factorization.

201020101112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608785211.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201020101112221 its reverse (122211101020102), we get a palindrome (323231202132323).

The spelling of 201020101112221 in words is "two hundred one trillion, twenty billion, one hundred one million, one hundred twelve thousand, two hundred twenty-one".