221222323222122 has 16 divisors (see below), whose sum is σ = 454402609862112. Its totient is φ = 71747780504400.

The previous prime is 221222323222079. The next prime is 221222323222123.

221222323222122 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 221222323222122.

It is not an unprimeable number, because it can be changed into a prime (221222323222123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498248475504 + ... + 498248475947.

It is an arithmetic number, because the mean of its divisors is an integer number (28400163116382).

Almost surely, 2^{221222323222122} is an apocalyptic number.

221222323222122 is an abundant number, since it is smaller than the sum of its proper divisors (233180286639990).

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

221222323222122 is a wasteful number, since it uses less digits than its factorization.

221222323222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996496951493.

The product of its digits is 18432, while the sum is 30.

The spelling of 221222323222122 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, three hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty-two".