2112200022121 has 16 divisors (see below), whose sum is σ = 2488936716288. Its totient is φ = 1754854592400.

The previous prime is 2112200022103. The next prime is 2112200022143. The reversal of 2112200022121 is 1212200022112.

It is a happy number.

It is not a de Polignac number, because 2112200022121 - 2⁵ = 2112200022089 is a prime.

It is a super-2 number, since 2×2112200022121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112200022095 and 2112200022104.

It is not an unprimeable number, because it can be changed into a prime (2112200022421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26744065 + ... + 26822926.

It is an arithmetic number, because the mean of its divisors is an integer number (155558544768).

Almost surely, 2^{2112200022121} is an apocalyptic number.

It is an amenable number.

2112200022121 is a deficient number, since it is larger than the sum of its proper divisors (376736694167).

2112200022121 is a wasteful number, since it uses less digits than its factorization.

2112200022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53567172.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2112200022121 its reverse (1212200022112), we get a palindrome (3324400044233).

Subtracting from 2112200022121 its reverse (1212200022112), we obtain a palindrome (900000000009).

The spelling of 2112200022121 in words is "two trillion, one hundred twelve billion, two hundred million, twenty-two thousand, one hundred twenty-one".