221042103 has 8 divisors (see below), whose sum is σ = 297043968. Its totient is φ = 146200824.

The previous prime is 221042093. The next prime is 221042113. The reversal of 221042103 is 301240122.

It is an interprime number because it is at equal distance from previous prime (221042093) and next prime (221042113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221042103 - 2⁵ = 221042071 is a prime.

It is a super-2 number, since 2×221042103² = 97719222597325218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221042113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289701 + ... + 290462.

It is an arithmetic number, because the mean of its divisors is an integer number (37130496).

Almost surely, 2^221042103 is an apocalyptic number.

221042103 is a deficient number, since it is larger than the sum of its proper divisors (76001865).

221042103 is a wasteful number, since it uses less digits than its factorization.

221042103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580293.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 221042103 is about 14867.4847570125. The cubic root of 221042103 is about 604.6327511849.

Adding to 221042103 its reverse (301240122), we get a palindrome (522282225).

The spelling of 221042103 in words is "two hundred twenty-one million, forty-two thousand, one hundred three".