2112111221222 has 8 divisors (see below), whose sum is σ = 3168283918896. Its totient is φ = 1056016581592.

The previous prime is 2112111221179. The next prime is 2112111221263. The reversal of 2112111221222 is 2221221112112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2112111221222² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2112111221194 and 2112111221203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19446818 + ... + 19555125.

It is an arithmetic number, because the mean of its divisors is an integer number (396035489862).

Almost surely, 2^{2112111221222} is an apocalyptic number.

2112111221222 is a deficient number, since it is larger than the sum of its proper divisors (1056172697674).

2112111221222 is a wasteful number, since it uses less digits than its factorization.

2112111221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39029022.

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

Adding to 2112111221222 its reverse (2221221112112), we get a palindrome (4333332333334).

The spelling of 2112111221222 in words is "two trillion, one hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".