221222242222122 has 64 divisors (see below), whose sum is σ = 459412326471168. Its totient is φ = 70967050560000.

The previous prime is 221222242222103. The next prime is 221222242222187.

221222242222122 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 221222242222122.

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 31 ways as a sum of consecutive naturals, for example, 9694293 + ... + 23160824.

It is an arithmetic number, because the mean of its divisors is an integer number (7178317601112).

Almost surely, 2^{221222242222122} is an apocalyptic number.

221222242222122 is an abundant number, since it is smaller than the sum of its proper divisors (238190084249046).

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

221222242222122 is a wasteful number, since it uses less digits than its factorization.

221222242222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32855535.

The product of its digits is 16384, while the sum is 30.

The spelling of 221222242222122 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred forty-two million, two hundred twenty-two thousand, one hundred twenty-two".