2221210122 has 16 divisors (see below), whose sum is σ = 4562486112. Its totient is φ = 720392400.

The previous prime is 2221210091. The next prime is 2221210127. The reversal of 2221210122 is 2210121222.

It is not an unprimeable number, because it can be changed into a prime (2221210127) 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 7 ways as a sum of consecutive naturals, for example, 5002504 + ... + 5002947.

It is an arithmetic number, because the mean of its divisors is an integer number (285155382).

Almost surely, 2^2221210122 is an apocalyptic number.

2221210122 is an abundant number, since it is smaller than the sum of its proper divisors (2341275990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221210122 is a wasteful number, since it uses less digits than its factorization.

2221210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005493.

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

The square root of 2221210122 is about 47129.7159125747. The cubic root of 2221210122 is about 1304.7577383852.

Adding to 2221210122 its reverse (2210121222), we get a palindrome (4431331344).

Subtracting from 2221210122 its reverse (2210121222), we obtain a square (11088900 = 3330²).

The spelling of 2221210122 in words is "two billion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".