12122222211112 has 32 divisors (see below), whose sum is σ = 24477726228480. Its totient is φ = 5594834727360.

The previous prime is 12122222211083. The next prime is 12122222211119. The reversal of 12122222211112 is 21111222222121.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12122222211119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21122437 + ... + 21688747.

It is an arithmetic number, because the mean of its divisors is an integer number (764928944640).

Almost surely, 2^{12122222211112} is an apocalyptic number.

It is an amenable number.

12122222211112 is an abundant number, since it is smaller than the sum of its proper divisors (12355504017368).

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

12122222211112 is a wasteful number, since it uses less digits than its factorization.

12122222211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772153 (or 772149 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

Adding to 12122222211112 its reverse (21111222222121), we get a palindrome (33233444433233).

The spelling of 12122222211112 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twelve".