221110222110012 has 24 divisors (see below), whose sum is σ = 573248723989200. Its totient is φ = 73703407369968.

The previous prime is 221110222109999. The next prime is 221110222110053. The reversal of 221110222110012 is 210011222011122.

221110222110012 is a `hidden beast` number, since 221 + 110 + 2 + 221 + 100 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023658435587 + ... + 1023658435802.

It is an arithmetic number, because the mean of its divisors is an integer number (23885363499550).

Almost surely, 2^{221110222110012} is an apocalyptic number.

It is an amenable number.

221110222110012 is an abundant number, since it is smaller than the sum of its proper divisors (352138501879188).

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

221110222110012 is a wasteful number, since it uses less digits than its factorization.

221110222110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047316871402 (or 2047316871394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221110222110012 its reverse (210011222011122), we get a palindrome (431121444121134).

The spelling of 221110222110012 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-two million, one hundred ten thousand, twelve".