221100112101102 has 16 divisors (see below), whose sum is σ = 476215626064080. Its totient is φ = 68030803723392.

The previous prime is 221100112101097. The next prime is 221100112101109. The reversal of 221100112101102 is 201101211001122.

It is a happy number.

It is a super-2 number, since 2×221100112101102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100112101109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417308410827 + ... + 1417308410982.

It is an arithmetic number, because the mean of its divisors is an integer number (29763476629005).

Almost surely, 2^{221100112101102} is an apocalyptic number.

221100112101102 is an abundant number, since it is smaller than the sum of its proper divisors (255115513962978).

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

221100112101102 is a wasteful number, since it uses less digits than its factorization.

221100112101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834616821827.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221100112101102 its reverse (201101211001122), we get a palindrome (422201323102224).

The spelling of 221100112101102 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twelve million, one hundred one thousand, one hundred two".