221002310310223 has 12 divisors (see below), whose sum is σ = 240632349805848. Its totient is φ = 202875048960480.

The previous prime is 221002310310209. The next prime is 221002310310241. The reversal of 221002310310223 is 322013013200122.

It is not a de Polignac number, because 221002310310223 - 2⁵ = 221002310310191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221002310310194 and 221002310310203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002310310823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3612416865 + ... + 3612478042.

It is an arithmetic number, because the mean of its divisors is an integer number (20052695817154).

Almost surely, 2^{221002310310223} is an apocalyptic number.

221002310310223 is a deficient number, since it is larger than the sum of its proper divisors (19630039495625).

221002310310223 is a wasteful number, since it uses less digits than its factorization.

221002310310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224895114 (or 7224895101 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221002310310223 its reverse (322013013200122), we get a palindrome (543015323510345).

The spelling of 221002310310223 in words is "two hundred twenty-one trillion, two billion, three hundred ten million, three hundred ten thousand, two hundred twenty-three".