220112111212 has 12 divisors (see below), whose sum is σ = 440224222480. Its totient is φ = 94333761936.

The previous prime is 220112111209. The next prime is 220112111213. The reversal of 220112111212 is 212111211022.

220112111212 is an admirable number.

It is a super-2 number, since 2×220112111212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220112111213) 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, 3930573387 + ... + 3930573442.

Almost surely, 2^220112111212 is an apocalyptic number.

It is an amenable number.

220112111212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220112111212 is a wasteful number, since it uses less digits than its factorization.

220112111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861146840 (or 7861146838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220112111212 its reverse (212111211022), we get a palindrome (432223322234).

The spelling of 220112111212 in words is "two hundred twenty billion, one hundred twelve million, one hundred eleven thousand, two hundred twelve".