221101101106 has 16 divisors (see below), whose sum is σ = 332565834240. Its totient is φ = 110245892400.

The previous prime is 221101101101. The next prime is 221101101127. The reversal of 221101101106 is 601101101122.

It is a self number, because there is not a number n which added to its sum of digits gives 221101101106.

It is not an unprimeable number, because it can be changed into a prime (221101101101) 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, 11778280 + ... + 11797036.

It is an arithmetic number, because the mean of its divisors is an integer number (20785364640).

Almost surely, 2^221101101106 is an apocalyptic number.

221101101106 is a deficient number, since it is larger than the sum of its proper divisors (111464733134).

221101101106 is a wasteful number, since it uses less digits than its factorization.

221101101106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34689.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 221101101106 its sum of digits (16), we get a palindrome (221101101122).

Adding to 221101101106 its reverse (601101101122), we get a palindrome (822202202228).

The spelling of 221101101106 in words is "two hundred twenty-one billion, one hundred one million, one hundred one thousand, one hundred six".