2112222001121 has 8 divisors (see below), whose sum is σ = 2122556894688. Its totient is φ = 2101890168000.

The previous prime is 2112222001091. The next prime is 2112222001147. The reversal of 2112222001121 is 1211002222112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112222001121 is a prime.

It is a super-2 number, since 2×2112222001121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112222001121.

It is not an unprimeable number, because it can be changed into a prime (2112222004121) 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, 624761 + ... + 2148201.

It is an arithmetic number, because the mean of its divisors is an integer number (265319611836).

Almost surely, 2^{2112222001121} is an apocalyptic number.

It is an amenable number.

2112222001121 is a deficient number, since it is larger than the sum of its proper divisors (10334893567).

2112222001121 is a wasteful number, since it uses less digits than its factorization.

2112222001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530223.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112222001121 its reverse (1211002222112), we get a palindrome (3323224223233).

The spelling of 2112222001121 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, one thousand, one hundred twenty-one".