111012021222 has 16 divisors (see below), whose sum is σ = 222206492592. Its totient is φ = 36973598720.

The previous prime is 111012021143. The next prime is 111012021229. The reversal of 111012021222 is 222120210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012021229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7594179 + ... + 7608782.

It is an arithmetic number, because the mean of its divisors is an integer number (13887905787).

Almost surely, 2^111012021222 is an apocalyptic number.

111012021222 is an abundant number, since it is smaller than the sum of its proper divisors (111194471370).

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

111012021222 is a wasteful number, since it uses less digits than its factorization.

111012021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204183.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111012021222 its reverse (222120210111), we get a palindrome (333132231333).

The spelling of 111012021222 in words is "one hundred eleven billion, twelve million, twenty-one thousand, two hundred twenty-two".