221222111103 has 24 divisors (see below), whose sum is σ = 386673943968. Its totient is φ = 118976596992.

The previous prime is 221222111101. The next prime is 221222111107. The reversal of 221222111103 is 301111222122.

It is not a de Polignac number, because 221222111103 - 2¹ = 221222111101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222111101) by changing a digit.

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, 103277226 + ... + 103279367.

It is an arithmetic number, because the mean of its divisors is an integer number (16111414332).

Almost surely, 2^221222111103 is an apocalyptic number.

221222111103 is a deficient number, since it is larger than the sum of its proper divisors (165451832865).

221222111103 is a wasteful number, since it uses less digits than its factorization.

221222111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206556623 (or 206556620 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 221222111103 its reverse (301111222122), we get a palindrome (522333333225).

The spelling of 221222111103 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred three".