221110303012 has 6 divisors (see below), whose sum is σ = 386943030278. Its totient is φ = 110555151504.

The previous prime is 221110303009. The next prime is 221110303019. The reversal of 221110303012 is 210303011122.

It can be written as a sum of positive squares in only one way, i.e., 163194992676 + 57915310336 = 403974^2 + 240656^2 .

It is not an unprimeable number, because it can be changed into a prime (221110303019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27638787873 + ... + 27638787880.

Almost surely, 2^221110303012 is an apocalyptic number.

It is an amenable number.

221110303012 is a deficient number, since it is larger than the sum of its proper divisors (165832727266).

221110303012 is a wasteful number, since it uses less digits than its factorization.

221110303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55277575757 (or 55277575755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221110303012 its reverse (210303011122), we get a palindrome (431413314134).

The spelling of 221110303012 in words is "two hundred twenty-one billion, one hundred ten million, three hundred three thousand, twelve".