2210002211221 has 32 divisors (see below), whose sum is σ = 2591987466240. Its totient is φ = 1844998114176.

The previous prime is 2210002211177. The next prime is 2210002211239. The reversal of 2210002211221 is 1221122000122.

It is a happy number.

It is not a de Polignac number, because 2210002211221 - 2²⁹ = 2209465340309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210002211195 and 2210002211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210002214221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56964396 + ... + 57003178.

It is an arithmetic number, because the mean of its divisors is an integer number (80999608320).

Almost surely, 2^{2210002211221} is an apocalyptic number.

It is an amenable number.

2210002211221 is a deficient number, since it is larger than the sum of its proper divisors (381985255019).

2210002211221 is a wasteful number, since it uses less digits than its factorization.

2210002211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39673.

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

Adding to 2210002211221 its reverse (1221122000122), we get a palindrome (3431124211343).

The spelling of 2210002211221 in words is "two trillion, two hundred ten billion, two million, two hundred eleven thousand, two hundred twenty-one".