221100120212110 has 64 divisors (see below), whose sum is σ = 404656251863040. Its totient is φ = 86970318332800.

The previous prime is 221100120212099. The next prime is 221100120212113. The reversal of 221100120212110 is 11212021001122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100120212113) 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, 91256619 + ... + 93648121.

It is an arithmetic number, because the mean of its divisors is an integer number (6322753935360).

Almost surely, 2^{221100120212110} is an apocalyptic number.

221100120212110 is a deficient number, since it is larger than the sum of its proper divisors (183556131650930).

221100120212110 is a wasteful number, since it uses less digits than its factorization.

221100120212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392233.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221100120212110 its reverse (11212021001122), we get a palindrome (232312141213232).

The spelling of 221100120212110 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twenty million, two hundred twelve thousand, one hundred ten".