221233211030 has 32 divisors (see below), whose sum is σ = 428966090784. Its totient is φ = 81664390656.

The previous prime is 221233210987. The next prime is 221233211077. The reversal of 221233211030 is 30112332122.

It is a junction number, because it is equal to n+sod(n) for n = 221233210993 and 221233211011.

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, 268757 + ... + 717423.

It is an arithmetic number, because the mean of its divisors is an integer number (13405190337).

Almost surely, 2^221233211030 is an apocalyptic number.

221233211030 is a deficient number, since it is larger than the sum of its proper divisors (207732879754).

221233211030 is a wasteful number, since it uses less digits than its factorization.

221233211030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452480.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 221233211030 its reverse (30112332122), we get a palindrome (251345543152).

The spelling of 221233211030 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred eleven thousand, thirty".