22221222210122 has 8 divisors (see below), whose sum is σ = 35895820493316. Its totient is φ = 10255948712352.

The previous prime is 22221222210059. The next prime is 22221222210127. The reversal of 22221222210122 is 22101222212222.

It can be written as a sum of positive squares in 2 ways, for example, as 18157816917601 + 4063405292521 = 4261199^2 + 2015789^2 .

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 (22221222210127) 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 3 ways as a sum of consecutive naturals, for example, 427331196323 + ... + 427331196374.

Almost surely, 2^{22221222210122} is an apocalyptic number.

22221222210122 is a deficient number, since it is larger than the sum of its proper divisors (13674598283194).

22221222210122 is a wasteful number, since it uses less digits than its factorization.

22221222210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854662392712.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22221222210122 its reverse (22101222212222), we get a palindrome (44322444422344).

The spelling of 22221222210122 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred ten thousand, one hundred twenty-two".