2210210210221 has 8 divisors (see below), whose sum is σ = 2435580482720. Its totient is φ = 1992747666672.

The previous prime is 2210210210203. The next prime is 2210210210233. The reversal of 2210210210221 is 1220120120122.

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 a de Polignac number, because none of the positive numbers 2^k-2210210210221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210210210195 and 2210210210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210210210261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1976931651 + ... + 1976932768.

It is an arithmetic number, because the mean of its divisors is an integer number (304447560340).

Almost surely, 2^{2210210210221} is an apocalyptic number.

It is an amenable number.

2210210210221 is a deficient number, since it is larger than the sum of its proper divisors (225370272499).

2210210210221 is a wasteful number, since it uses less digits than its factorization.

2210210210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953864475.

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

Adding to 2210210210221 its reverse (1220120120122), we get a palindrome (3430330330343).

Subtracting from 2210210210221 its reverse (1220120120122), we obtain a palindrome (990090090099).

The spelling of 2210210210221 in words is "two trillion, two hundred ten billion, two hundred ten million, two hundred ten thousand, two hundred twenty-one".