221221200000110 has 16 divisors (see below), whose sum is σ = 407458582326576. Its totient is φ = 86430608371968.

The previous prime is 221221200000071. The next prime is 221221200000197. The reversal of 221221200000110 is 11000002122122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257233953059 + ... + 257233953918.

It is an arithmetic number, because the mean of its divisors is an integer number (25466161395411).

Almost surely, 2^{221221200000110} is an apocalyptic number.

221221200000110 is a deficient number, since it is larger than the sum of its proper divisors (186237382326466).

221221200000110 is a wasteful number, since it uses less digits than its factorization.

221221200000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514467907027.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221221200000110 its reverse (11000002122122), we get a palindrome (232221202122232).

The spelling of 221221200000110 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, two hundred million, one hundred ten", and thus it is an aban number.