221233212230 has 16 divisors (see below), whose sum is σ = 398322565200. Its totient is φ = 88470444192.

The previous prime is 221233212229. The next prime is 221233212247. The reversal of 221233212230 is 32212332122.

It is a junction number, because it is equal to n+sod(n) for n = 221233212196 and 221233212205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814380 + ... + 2891919.

It is an arithmetic number, because the mean of its divisors is an integer number (24895160325).

Almost surely, 2^221233212230 is an apocalyptic number.

221233212230 is a deficient number, since it is larger than the sum of its proper divisors (177089352970).

221233212230 is a wasteful number, since it uses less digits than its factorization.

221233212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710183.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221233212230 its reverse (32212332122), we get a palindrome (253445544352).

The spelling of 221233212230 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred twelve thousand, two hundred thirty".