2210122221 has 16 divisors (see below), whose sum is σ = 3046539648. Its totient is φ = 1424088000.

The previous prime is 2210122193. The next prime is 2210122253. The reversal of 2210122221 is 1222210122.

It is not a de Polignac number, because 2210122221 - 2⁶ = 2210122157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2210122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210122721) 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 15 ways as a sum of consecutive naturals, for example, 49170 + ... + 82691.

It is an arithmetic number, because the mean of its divisors is an integer number (190408728).

Almost surely, 2^2210122221 is an apocalyptic number.

It is an amenable number.

2210122221 is a deficient number, since it is larger than the sum of its proper divisors (836417427).

2210122221 is a wasteful number, since it uses less digits than its factorization.

2210122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132052.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2210122221 is about 47011.9370054032. The cubic root of 2210122221 is about 1302.5830733570.

Adding to 2210122221 its reverse (1222210122), we get a palindrome (3432332343).

The spelling of 2210122221 in words is "two billion, two hundred ten million, one hundred twenty-two thousand, two hundred twenty-one".