221121002112110 has 16 divisors (see below), whose sum is σ = 415322925706656. Its totient is φ = 84602818199328.

The previous prime is 221121002112091. The next prime is 221121002112193. The reversal of 221121002112110 is 11211200121122.

221121002112110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 480697830449 + ... + 480697830908.

It is an arithmetic number, because the mean of its divisors is an integer number (25957682856666).

Almost surely, 2^{221121002112110} is an apocalyptic number.

221121002112110 is a deficient number, since it is larger than the sum of its proper divisors (194201923594546).

221121002112110 is a wasteful number, since it uses less digits than its factorization.

221121002112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961395661387.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221121002112110 its reverse (11211200121122), we get a palindrome (232332202233232).

The spelling of 221121002112110 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, two million, one hundred twelve thousand, one hundred ten".