2221122222112 has 48 divisors (see below), whose sum is σ = 4379070215520. Its totient is φ = 1108978103808.

The previous prime is 2221122222107. The next prime is 2221122222139. The reversal of 2221122222112 is 2112222211222.

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

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, 140046439 + ... + 140062297.

It is an arithmetic number, because the mean of its divisors is an integer number (91230629490).

Almost surely, 2^{2221122222112} is an apocalyptic number.

It is an amenable number.

2221122222112 is a deficient number, since it is larger than the sum of its proper divisors (2157947993408).

2221122222112 is a wasteful number, since it uses less digits than its factorization.

2221122222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21833 (or 21825 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

Adding to 2221122222112 its reverse (2112222211222), we get a palindrome (4333344433334).

It can be divided in two parts, 22 and 21122222112, that multiplied together give a palindrome (464688886464).

The spelling of 2221122222112 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".