2221102220210 has 8 divisors (see below), whose sum is σ = 3997983996396. Its totient is φ = 888440888080.

The previous prime is 2221102220167. The next prime is 2221102220219. The reversal of 2221102220210 is 120222011222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2208918255049 + 12183965161 = 1486243^2 + 110381^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2221102220219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111055111001 + ... + 111055111020.

Almost surely, 2^{2221102220210} is an apocalyptic number.

2221102220210 is a deficient number, since it is larger than the sum of its proper divisors (1776881776186).

2221102220210 is a wasteful number, since it uses less digits than its factorization.

2221102220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222110222028.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2221102220210 its reverse (120222011222), we get a palindrome (2341324231432).

The spelling of 2221102220210 in words is "two trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty thousand, two hundred ten".