221001100100110 has 16 divisors (see below), whose sum is σ = 433965796560432. Its totient is φ = 80364036400000.

The previous prime is 221001100100089. The next prime is 221001100100173. The reversal of 221001100100110 is 11001001100122.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 1004550454891 + ... + 1004550455110.

It is an arithmetic number, because the mean of its divisors is an integer number (27122862285027).

Almost surely, 2^{221001100100110} is an apocalyptic number.

221001100100110 is a deficient number, since it is larger than the sum of its proper divisors (212964696460322).

221001100100110 is a wasteful number, since it uses less digits than its factorization.

221001100100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009100910019.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 221001100100110 its reverse (11001001100122), we get a palindrome (232002101200232).

The spelling of 221001100100110 in words is "two hundred twenty-one trillion, one billion, one hundred million, one hundred thousand, one hundred ten".