221102221101102 has 48 divisors (see below), whose sum is σ = 545327217272448. Its totient is φ = 64087600317840.

The previous prime is 221102221101053. The next prime is 221102221101149. The reversal of 221102221101102 is 201101122201122.

221102221101102 is a `hidden beast` number, since 221 + 1 + 0 + 222 + 110 + 110 + 2 = 666.

It is a super-2 number, since 2×221102221101102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24275601628 + ... + 24275610735.

It is an arithmetic number, because the mean of its divisors is an integer number (11360983693176).

Almost surely, 2^{221102221101102} is an apocalyptic number.

221102221101102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221102221101102 is an abundant number, since it is smaller than the sum of its proper divisors (324224996171346).

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

221102221101102 is a wasteful number, since it uses less digits than its factorization.

221102221101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48551212405 (or 48551212402 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221102221101102 its reverse (201101122201122), we get a palindrome (422203343302224).

The spelling of 221102221101102 in words is "two hundred twenty-one trillion, one hundred two billion, two hundred twenty-one million, one hundred one thousand, one hundred two".