201221200201101 has 8 divisors (see below), whose sum is σ = 268656030419520. Its totient is φ = 133966918391712.

The previous prime is 201221200201031. The next prime is 201221200201123. The reversal of 201221200201101 is 101102002122102.

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

It is not a de Polignac number, because 201221200201101 - 2¹⁷ = 201221200070029 is a prime.

It is a super-2 number, since 2×201221200201101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221200209101) 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, 45137099656 + ... + 45137104113.

It is an arithmetic number, because the mean of its divisors is an integer number (33582003802440).

Almost surely, 2^{201221200201101} is an apocalyptic number.

It is an amenable number.

201221200201101 is a deficient number, since it is larger than the sum of its proper divisors (67434830218419).

201221200201101 is an equidigital number, since it uses as much as digits as its factorization.

201221200201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90274204515.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201221200201101 its reverse (101102002122102), we get a palindrome (302323202323203).

The spelling of 201221200201101 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred million, two hundred one thousand, one hundred one".