2210112221221 has 16 divisors (see below), whose sum is σ = 2314389168000. Its totient is φ = 2107717915968.

The previous prime is 2210112221179. The next prime is 2210112221227. The reversal of 2210112221221 is 1221222110122.

It is a cyclic number.

It is not a de Polignac number, because 2210112221221 - 2⁴¹ = 11088965669 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 (2210112221227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10848520 + ... + 11050366.

It is an arithmetic number, because the mean of its divisors is an integer number (144649323000).

Almost surely, 2^{2210112221221} is an apocalyptic number.

It is an amenable number.

2210112221221 is a deficient number, since it is larger than the sum of its proper divisors (104276946779).

2210112221221 is a wasteful number, since it uses less digits than its factorization.

2210112221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206508.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2210112221221 its reverse (1221222110122), we get a palindrome (3431334331343).

The spelling of 2210112221221 in words is "two trillion, two hundred ten billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".