221110102122 has 256 divisors, whose sum is σ = 569889976320. Its totient is φ = 55642318848.

The previous prime is 221110102121. The next prime is 221110102127. The reversal of 221110102122 is 221201011122.

221110102122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221110102121) 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 127 ways as a sum of consecutive naturals, for example, 273312454 + ... + 273313262.

It is an arithmetic number, because the mean of its divisors is an integer number (2226132720).

Almost surely, 2^221110102122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221110102122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284944988160).

221110102122 is an abundant number, since it is smaller than the sum of its proper divisors (348779874198).

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

221110102122 is a wasteful number, since it uses less digits than its factorization.

221110102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221110102122 its reverse (221201011122), we get a palindrome (442311113244).

The spelling of 221110102122 in words is "two hundred twenty-one billion, one hundred ten million, one hundred two thousand, one hundred twenty-two".