221222101003 has 4 divisors (see below), whose sum is σ = 221223285000. Its totient is φ = 221220917008.

The previous prime is 221222100977. The next prime is 221222101031. The reversal of 221222101003 is 300101222122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 221222101003 - 2²⁵ = 221188546571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221222101703) 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 3 ways as a sum of consecutive naturals, for example, 243250 + ... + 708247.

It is an arithmetic number, because the mean of its divisors is an integer number (55305821250).

Almost surely, 2^221222101003 is an apocalyptic number.

221222101003 is a deficient number, since it is larger than the sum of its proper divisors (1183997).

221222101003 is an equidigital number, since it uses as much as digits as its factorization.

221222101003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183996.

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

Adding to 221222101003 its reverse (300101222122), we get a palindrome (521323323125).

The spelling of 221222101003 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, three".