212112021232121 has 8 divisors (see below), whose sum is σ = 216625334065920. Its totient is φ = 207598720527808.

The previous prime is 212112021232117. The next prime is 212112021232151. The reversal of 212112021232121 is 121232120211212.

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

It is a cyclic number.

It is not a de Polignac number, because 212112021232121 - 2² = 212112021232117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112021232151) 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, 38222780 + ... + 43418946.

It is an arithmetic number, because the mean of its divisors is an integer number (27078166758240).

Almost surely, 2^{212112021232121} is an apocalyptic number.

It is an amenable number.

212112021232121 is a deficient number, since it is larger than the sum of its proper divisors (4513312833799).

212112021232121 is an equidigital number, since it uses as much as digits as its factorization.

212112021232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064743.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 212112021232121 its reverse (121232120211212), we get a palindrome (333344141443333).

The spelling of 212112021232121 in words is "two hundred twelve trillion, one hundred twelve billion, twenty-one million, two hundred thirty-two thousand, one hundred twenty-one".