111222220100012 has 24 divisors (see below), whose sum is σ = 223050555861504. Its totient is φ = 47536783829712.

The previous prime is 111222220099997. The next prime is 111222220100041. The reversal of 111222220100012 is 210001022222111.

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, 5411736518 + ... + 5411757069.

It is an arithmetic number, because the mean of its divisors is an integer number (9293773160896).

Almost surely, 2^{111222220100012} is an apocalyptic number.

It is an amenable number.

111222220100012 is an abundant number, since it is smaller than the sum of its proper divisors (111828335761492).

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

111222220100012 is a wasteful number, since it uses less digits than its factorization.

111222220100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823493965 (or 10823493963 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111222220100012 its reverse (210001022222111), we get a palindrome (321223242322123).

The spelling of 111222220100012 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, one hundred thousand, twelve".