2112210221122 has 16 divisors (see below), whose sum is σ = 3354982975872. Its totient is φ = 993893531200.

The previous prime is 2112210221041. The next prime is 2112210221129. The reversal of 2112210221122 is 2211220122112.

It is a super-2 number, since 2×2112210221122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112210221122.

It is not an unprimeable number, because it can be changed into a prime (2112210221129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350558 + ... + 3122425.

It is an arithmetic number, because the mean of its divisors is an integer number (209686435992).

Almost surely, 2^{2112210221122} is an apocalyptic number.

2112210221122 is a deficient number, since it is larger than the sum of its proper divisors (1242772754750).

2112210221122 is a wasteful number, since it uses less digits than its factorization.

2112210221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484353.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2112210221122 its reverse (2211220122112), we get a palindrome (4323430343234).

It can be divided in two parts, 2112210 and 221122, that added together give a palindrome (2333332).

The spelling of 2112210221122 in words is "two trillion, one hundred twelve billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-two".