221011030110 has 256 divisors, whose sum is σ = 615142563840. Its totient is φ = 50333982720.

The previous prime is 221011030109. The next prime is 221011030169. The reversal of 221011030110 is 11030110122.

221011030110 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221011030110² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 307386331 + ... + 307387049.

It is an arithmetic number, because the mean of its divisors is an integer number (2402900640).

Almost surely, 2^221011030110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221011030110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307571281920).

221011030110 is an abundant number, since it is smaller than the sum of its proper divisors (394131533730).

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

221011030110 is a wasteful number, since it uses less digits than its factorization.

221011030110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 221011030110 its reverse (11030110122), we get a palindrome (232041140232).

The spelling of 221011030110 in words is "two hundred twenty-one billion, eleven million, thirty thousand, one hundred ten".