221110222221112 has 64 divisors (see below), whose sum is σ = 482758514239680. Its totient is φ = 92971427208192.

The previous prime is 221110222221103. The next prime is 221110222221113. The reversal of 221110222221112 is 211122222011122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110222221113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131337508 + ... + 133010380.

It is an arithmetic number, because the mean of its divisors is an integer number (7543101784995).

Almost surely, 2^{221110222221112} is an apocalyptic number.

It is an amenable number.

221110222221112 is an abundant number, since it is smaller than the sum of its proper divisors (261648292018568).

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

221110222221112 is a wasteful number, since it uses less digits than its factorization.

221110222221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717472 (or 1717468 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 221110222221112 its reverse (211122222011122), we get a palindrome (432232444232234).

The spelling of 221110222221112 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".