221311310222 has 32 divisors (see below), whose sum is σ = 352458273024. Its totient is φ = 103861296000.

The previous prime is 221311310219. The next prime is 221311310291. The reversal of 221311310222 is 222013113122.

It is a junction number, because it is equal to n+sod(n) for n = 221311310194 and 221311310203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21796847 + ... + 21806997.

It is an arithmetic number, because the mean of its divisors is an integer number (11014321032).

Almost surely, 2^221311310222 is an apocalyptic number.

221311310222 is a deficient number, since it is larger than the sum of its proper divisors (131146962802).

221311310222 is a wasteful number, since it uses less digits than its factorization.

221311310222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11864.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221311310222 its reverse (222013113122), we get a palindrome (443324423344).

The spelling of 221311310222 in words is "two hundred twenty-one billion, three hundred eleven million, three hundred ten thousand, two hundred twenty-two".