111220221211122 has 32 divisors (see below), whose sum is σ = 222677764026048. Its totient is φ = 37033872558336.

The previous prime is 111220221211117. The next prime is 111220221211129. The reversal of 111220221211122 is 221112122022111.

It is not an unprimeable number, because it can be changed into a prime (111220221211129) 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, 20942373 + ... + 25710375.

It is an arithmetic number, because the mean of its divisors is an integer number (6958680125814).

Almost surely, 2^{111220221211122} is an apocalyptic number.

111220221211122 is an abundant number, since it is smaller than the sum of its proper divisors (111457542814926).

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

111220221211122 is a wasteful number, since it uses less digits than its factorization.

111220221211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772154.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111220221211122 its reverse (221112122022111), we get a palindrome (332332343233233).

The spelling of 111220221211122 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".