2221220210122 has 8 divisors (see below), whose sum is σ = 3333069382500. Its totient is φ = 1110197082624.

The previous prime is 2221220210059. The next prime is 2221220210189. The reversal of 2221220210122 is 2210120221222.

It can be written as a sum of positive squares in 2 ways, for example, as 2183777573121 + 37442637001 = 1477761^2 + 193501^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2221220210122.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 206504497 + ... + 206515252.

Almost surely, 2^{2221220210122} is an apocalyptic number.

2221220210122 is a deficient number, since it is larger than the sum of its proper divisors (1111849172378).

2221220210122 is a wasteful number, since it uses less digits than its factorization.

2221220210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413022440.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2221220210122 its reverse (2210120221222), we get a palindrome (4431340431344).

It can be divided in two parts, 2221220 and 210122, that added together give a palindrome (2431342).

The spelling of 2221220210122 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-two".