2210221100221 has 8 divisors (see below), whose sum is σ = 2241555470784. Its totient is φ = 2178892410240.

The previous prime is 2210221100189. The next prime is 2210221100231. The reversal of 2210221100221 is 1220011220122.

It is a happy number.

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 2210221100221 - 2⁵ = 2210221100189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210221100195 and 2210221100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210221100231) 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, 633396 + ... + 2195821.

It is an arithmetic number, because the mean of its divisors is an integer number (280194433848).

Almost surely, 2^{2210221100221} is an apocalyptic number.

It is an amenable number.

2210221100221 is a deficient number, since it is larger than the sum of its proper divisors (31334370563).

2210221100221 is a wasteful number, since it uses less digits than its factorization.

2210221100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840291.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2210221100221 its reverse (1220011220122), we get a palindrome (3430232320343).

The spelling of 2210221100221 in words is "two trillion, two hundred ten billion, two hundred twenty-one million, one hundred thousand, two hundred twenty-one".