221010221110 has 64 divisors (see below), whose sum is σ = 464624087040. Its totient is φ = 74114611200.

The previous prime is 221010221093. The next prime is 221010221123. The reversal of 221010221110 is 11122010122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5246311 + ... + 5288269.

It is an arithmetic number, because the mean of its divisors is an integer number (7259751360).

Almost surely, 2^221010221110 is an apocalyptic number.

221010221110 is an abundant number, since it is smaller than the sum of its proper divisors (243613865930).

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

221010221110 is a wasteful number, since it uses less digits than its factorization.

221010221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43621.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221010221110 its reverse (11122010122), we get a palindrome (232132231232).

The spelling of 221010221110 in words is "two hundred twenty-one billion, ten million, two hundred twenty-one thousand, one hundred ten".