221120102003 has 4 divisors (see below), whose sum is σ = 221134906608. Its totient is φ = 221105297400.

The previous prime is 221120101999. The next prime is 221120102129. The reversal of 221120102003 is 300201021122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221120102003 - 2² = 221120101999 is a prime.

It is a super-2 number, since 2×221120102003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221120102303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7379876 + ... + 7409777.

It is an arithmetic number, because the mean of its divisors is an integer number (55283726652).

Almost surely, 2^221120102003 is an apocalyptic number.

221120102003 is a deficient number, since it is larger than the sum of its proper divisors (14804605).

221120102003 is a wasteful number, since it uses less digits than its factorization.

221120102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14804604.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 221120102003 its reverse (300201021122), we get a palindrome (521321123125).

The spelling of 221120102003 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred two thousand, three".