221010002303 has 4 divisors (see below), whose sum is σ = 228139357248. Its totient is φ = 213880647360.

The previous prime is 221010002287. The next prime is 221010002309. The reversal of 221010002303 is 303200010122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303200010122 = 2 ⋅151600005061.

It is a cyclic number.

It is not a de Polignac number, because 221010002303 - 2⁴ = 221010002287 is a prime.

It is a super-2 number, since 2×221010002303² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010002309) 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, 3564677426 + ... + 3564677487.

It is an arithmetic number, because the mean of its divisors is an integer number (57034839312).

Almost surely, 2^221010002303 is an apocalyptic number.

221010002303 is a deficient number, since it is larger than the sum of its proper divisors (7129354945).

221010002303 is an equidigital number, since it uses as much as digits as its factorization.

221010002303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129354944.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 221010002303 its reverse (303200010122), we get a palindrome (524210012425).

The spelling of 221010002303 in words is "two hundred twenty-one billion, ten million, two thousand, three hundred three".