221431001110 has 64 divisors (see below), whose sum is σ = 437083029504. Its totient is φ = 80100316800.

The previous prime is 221431001107. The next prime is 221431001111. The reversal of 221431001110 is 11100134122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221431001111) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 21894955 + ... + 21905065.

It is an arithmetic number, because the mean of its divisors is an integer number (6829422336).

Almost surely, 2^221431001110 is an apocalyptic number.

221431001110 is a deficient number, since it is larger than the sum of its proper divisors (215652028394).

221431001110 is a wasteful number, since it uses less digits than its factorization.

221431001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11149.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221431001110 its reverse (11100134122), we get a palindrome (232531135232).

The spelling of 221431001110 in words is "two hundred twenty-one billion, four hundred thirty-one million, one thousand, one hundred ten".