2111212000121 has 32 divisors (see below), whose sum is σ = 2543160395520. Its totient is φ = 1712103782400.

The previous prime is 2111212000109. The next prime is 2111212000127. The reversal of 2111212000121 is 1210002121112.

It is a cyclic number.

It is not a de Polignac number, because 2111212000121 - 2⁶ = 2111212000057 is a prime.

It is a super-3 number, since 3×2111212000121³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2111212000096 and 2111212000105.

It is not an unprimeable number, because it can be changed into a prime (2111212000127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589557551 + ... + 589561131.

It is an arithmetic number, because the mean of its divisors is an integer number (79473762360).

Almost surely, 2^{2111212000121} is an apocalyptic number.

It is an amenable number.

2111212000121 is a deficient number, since it is larger than the sum of its proper divisors (431948395399).

2111212000121 is a wasteful number, since it uses less digits than its factorization.

2111212000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111212000121 its reverse (1210002121112), we get a palindrome (3321214121233).

The spelling of 2111212000121 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty-one", and thus it is an aban number.