2210100221 has 8 divisors (see below), whose sum is σ = 2532496320. Its totient is φ = 1889371008.

The previous prime is 2210100131. The next prime is 2210100239. The reversal of 2210100221 is 1220010122.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2210100221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210100271) 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, 413876 + ... + 419181.

It is an arithmetic number, because the mean of its divisors is an integer number (316562040).

Almost surely, 2^2210100221 is an apocalyptic number.

It is an amenable number.

2210100221 is a deficient number, since it is larger than the sum of its proper divisors (322396099).

2210100221 is an equidigital number, since it uses as much as digits as its factorization.

2210100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833443.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2210100221 is about 47011.7030216945. The cubic root of 2210100221 is about 1302.5787512849.

Adding to 2210100221 its reverse (1220010122), we get a palindrome (3430110343).

Subtracting from 2210100221 its reverse (1220010122), we obtain a palindrome (990090099).

The spelling of 2210100221 in words is "two billion, two hundred ten million, one hundred thousand, two hundred twenty-one".