2201021100221 has 8 divisors (see below), whose sum is σ = 2223008133984. Its totient is φ = 2179037885200.

The previous prime is 2201021100217. The next prime is 2201021100253. The reversal of 2201021100221 is 1220011201022.

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 2201021100221 - 2² = 2201021100217 is a prime.

It is a super-3 number, since 3×2201021100221³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201021100196 and 2201021100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201021100521) 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, 210890 + ... + 2108676.

It is an arithmetic number, because the mean of its divisors is an integer number (277876016748).

Almost surely, 2^{2201021100221} is an apocalyptic number.

It is an amenable number.

2201021100221 is a deficient number, since it is larger than the sum of its proper divisors (21987033763).

2201021100221 is a wasteful number, since it uses less digits than its factorization.

2201021100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909371.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201021100221 its reverse (1220011201022), we get a palindrome (3421032301243).

The spelling of 2201021100221 in words is "two trillion, two hundred one billion, twenty-one million, one hundred thousand, two hundred twenty-one".