221143240110 has 32 divisors (see below), whose sum is σ = 571570221600. Its totient is φ = 54435259008.

The previous prime is 221143240091. The next prime is 221143240127. The reversal of 221143240110 is 11042341122.

It is a super-2 number, since 2×221143240110² (a number of 23 digits) contains 22 as substring.

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, 283516585 + ... + 283517364.

It is an arithmetic number, because the mean of its divisors is an integer number (17861569425).

Almost surely, 2^221143240110 is an apocalyptic number.

221143240110 is an abundant number, since it is smaller than the sum of its proper divisors (350426981490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221143240110 is a wasteful number, since it uses less digits than its factorization.

221143240110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567033972.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221143240110 its reverse (11042341122), we get a palindrome (232185581232).

The spelling of 221143240110 in words is "two hundred twenty-one billion, one hundred forty-three million, two hundred forty thousand, one hundred ten".