221103023020110 has 144 divisors (see below), whose sum is σ = 722148055600608. Its totient is φ = 45943485287040.

The previous prime is 221103023020069. The next prime is 221103023020111. The reversal of 221103023020110 is 11020320301122.

221103023020110 is a `hidden beast` number, since 22 + 110 + 302 + 30 + 201 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221103023020111) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 1450160049 + ... + 1450312508.

It is an arithmetic number, because the mean of its divisors is an integer number (5014917052782).

Almost surely, 2^{221103023020110} is an apocalyptic number.

221103023020110 is an abundant number, since it is smaller than the sum of its proper divisors (501045032580498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221103023020110 is a wasteful number, since it uses less digits than its factorization.

221103023020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900472599 (or 2900472585 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221103023020110 its reverse (11020320301122), we get a palindrome (232123343321232).

The spelling of 221103023020110 in words is "two hundred twenty-one trillion, one hundred three billion, twenty-three million, twenty thousand, one hundred ten".