212000212112121 has 12 divisors (see below), whose sum is σ = 306500155573248. Its totient is φ = 141205339218264.

The previous prime is 212000212112111. The next prime is 212000212112123. The reversal of 212000212112121 is 121211212000212.

212000212112121 is a `hidden beast` number, since 21 + 200 + 0 + 21 + 211 + 212 + 1 = 666.

It is not a de Polignac number, because 212000212112121 - 2¹⁸ = 212000211849977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212000212112094 and 212000212112103.

It is not an unprimeable number, because it can be changed into a prime (212000212112123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10677949785 + ... + 10677969638.

It is an arithmetic number, because the mean of its divisors is an integer number (25541679631104).

Almost surely, 2^{212000212112121} is an apocalyptic number.

It is an amenable number.

212000212112121 is a deficient number, since it is larger than the sum of its proper divisors (94499943461127).

212000212112121 is a wasteful number, since it uses less digits than its factorization.

212000212112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355920532 (or 21355920529 counting only the distinct ones).

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

Adding to 212000212112121 its reverse (121211212000212), we get a palindrome (333211424112333).

The spelling of 212000212112121 in words is "two hundred twelve trillion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-one".