221101102122 has 16 divisors (see below), whose sum is σ = 442423661472. Its totient is φ = 73663457840.

The previous prime is 221101102067. The next prime is 221101102151. The reversal of 221101102122 is 221201101122.

221101102122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9214404 + ... + 9238367.

It is an arithmetic number, because the mean of its divisors is an integer number (27651478842).

Almost surely, 2^221101102122 is an apocalyptic number.

221101102122 is an abundant number, since it is smaller than the sum of its proper divisors (221322559350).

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

221101102122 is a wasteful number, since it uses less digits than its factorization.

221101102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18454773.

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

Adding to 221101102122 its reverse (221201101122), we get a palindrome (442302203244).

The spelling of 221101102122 in words is "two hundred twenty-one billion, one hundred one million, one hundred two thousand, one hundred twenty-two".