221101122102 has 48 divisors (see below), whose sum is σ = 514948155120. Its totient is φ = 63104251392.

The previous prime is 221101122101. The next prime is 221101122107. The reversal of 221101122102 is 201221101122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221101122101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125827 + ... + 676782.

It is an arithmetic number, because the mean of its divisors is an integer number (10728086565).

Almost surely, 2^221101122102 is an apocalyptic number.

221101122102 is an abundant number, since it is smaller than the sum of its proper divisors (293847033018).

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

221101122102 is a wasteful number, since it uses less digits than its factorization.

221101122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803565 (or 803558 counting only the distinct ones).

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

Adding to 221101122102 its reverse (201221101122), we get a palindrome (422322223224).

The spelling of 221101122102 in words is "two hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, one hundred two".