2112211202121 has 64 divisors (see below), whose sum is σ = 3254524416000. Its totient is φ = 1352909537280.

The previous prime is 2112211202119. The next prime is 2112211202183. The reversal of 2112211202121 is 1212021122112.

2112211202121 is a `hidden beast` number, since 211 + 221 + 1 + 20 + 212 + 1 = 666.

It is not a de Polignac number, because 2112211202121 - 2¹ = 2112211202119 is a prime.

It is a super-3 number, since 3×2112211202121³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2112211202094 and 2112211202103.

It is not an unprimeable number, because it can be changed into a prime (2112211202021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36158025 + ... + 36216393.

It is an arithmetic number, because the mean of its divisors is an integer number (50851944000).

Almost surely, 2^{2112211202121} is an apocalyptic number.

It is an amenable number.

2112211202121 is a deficient number, since it is larger than the sum of its proper divisors (1142313213879).

2112211202121 is a wasteful number, since it uses less digits than its factorization.

2112211202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58931 (or 58925 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2112211202121 its reverse (1212021122112), we get a palindrome (3324232324233).

The spelling of 2112211202121 in words is "two trillion, one hundred twelve billion, two hundred eleven million, two hundred two thousand, one hundred twenty-one".