111220110222222 has 32 divisors (see below), whose sum is σ = 223548031429632. Its totient is φ = 36889184693504.

The previous prime is 111220110222173. The next prime is 111220110222227. The reversal of 111220110222222 is 222222011022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220110222227) 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, 55233438 + ... + 57211649.

It is an arithmetic number, because the mean of its divisors is an integer number (6985875982176).

Almost surely, 2^{111220110222222} is an apocalyptic number.

111220110222222 is an abundant number, since it is smaller than the sum of its proper divisors (112327921207410).

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

111220110222222 is a wasteful number, since it uses less digits than its factorization.

111220110222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112445912.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 111220110222222 its reverse (222222011022111), we get a palindrome (333442121244333).

The spelling of 111220110222222 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-two".