221100124003 has 16 divisors (see below), whose sum is σ = 249616569600. Its totient is φ = 193991928480.

The previous prime is 221100123997. The next prime is 221100124051. The reversal of 221100124003 is 300421001122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221100124003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221100124303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673450 + ... + 946432.

It is an arithmetic number, because the mean of its divisors is an integer number (15601035600).

Almost surely, 2^221100124003 is an apocalyptic number.

221100124003 is a deficient number, since it is larger than the sum of its proper divisors (28516445597).

221100124003 is a wasteful number, since it uses less digits than its factorization.

221100124003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275562.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221100124003 its reverse (300421001122), we get a palindrome (521521125125).

The spelling of 221100124003 in words is "two hundred twenty-one billion, one hundred million, one hundred twenty-four thousand, three".