2122221112112 has 40 divisors (see below), whose sum is σ = 4270481909760. Its totient is φ = 1020581259840.

The previous prime is 2122221112103. The next prime is 2122221112127. The reversal of 2122221112112 is 2112111222212.

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, 13043912 + ... + 13205607.

It is an arithmetic number, because the mean of its divisors is an integer number (106762047744).

Almost surely, 2^{2122221112112} is an apocalyptic number.

It is an amenable number.

2122221112112 is an abundant number, since it is smaller than the sum of its proper divisors (2148260797648).

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

2122221112112 is a wasteful number, since it uses less digits than its factorization.

2122221112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26249721 (or 26249715 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 2122221112112 its reverse (2112111222212), we get a palindrome (4234332334324).

The spelling of 2122221112112 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twelve".