111001222212 has 12 divisors (see below), whose sum is σ = 259002851856. Its totient is φ = 37000407400.

The previous prime is 111001222181. The next prime is 111001222219. The reversal of 111001222212 is 212222100111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 111001222191 and 111001222200.

It is not an unprimeable number, because it can be changed into a prime (111001222219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4625050914 + ... + 4625050937.

It is an arithmetic number, because the mean of its divisors is an integer number (21583570988).

Almost surely, 2^111001222212 is an apocalyptic number.

111001222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111001222212 is an abundant number, since it is smaller than the sum of its proper divisors (148001629644).

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

111001222212 is a wasteful number, since it uses less digits than its factorization.

111001222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250101858 (or 9250101856 counting only the distinct ones).

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

Adding to 111001222212 its reverse (212222100111), we get a palindrome (323223322323).

The spelling of 111001222212 in words is "one hundred eleven billion, one million, two hundred twenty-two thousand, two hundred twelve".