221343021110 has 32 divisors (see below), whose sum is σ = 423458530560. Its totient is φ = 83063004768.

The previous prime is 221343021089. The next prime is 221343021131. The reversal of 221343021110 is 11120343122.

It is an interprime number because it is at equal distance from previous prime (221343021089) and next prime (221343021131).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5635592 + ... + 5674731.

It is an arithmetic number, because the mean of its divisors is an integer number (13233079080).

Almost surely, 2^221343021110 is an apocalyptic number.

221343021110 is a deficient number, since it is larger than the sum of its proper divisors (202115509450).

221343021110 is a wasteful number, since it uses less digits than its factorization.

221343021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310452.

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

Adding to 221343021110 its reverse (11120343122), we get a palindrome (232463364232).

The spelling of 221343021110 in words is "two hundred twenty-one billion, three hundred forty-three million, twenty-one thousand, one hundred ten".