212001211101121 has 8 divisors (see below), whose sum is σ = 229820976682304. Its totient is φ = 194397442678800.

The previous prime is 212001211101103. The next prime is 212001211101131. The reversal of 212001211101121 is 121101112100212.

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 212001211101121 - 2³⁷ = 211863772147649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212001211101095 and 212001211101104.

It is not an unprimeable number, because it can be changed into a prime (212001211101101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53999287671 + ... + 53999291596.

It is an arithmetic number, because the mean of its divisors is an integer number (28727622085288).

Almost surely, 2^{212001211101121} is an apocalyptic number.

It is an amenable number.

212001211101121 is a deficient number, since it is larger than the sum of its proper divisors (17819765581183).

212001211101121 is a wasteful number, since it uses less digits than its factorization.

212001211101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107998579431.

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

Adding to 212001211101121 its reverse (121101112100212), we get a palindrome (333102323201333).

Subtracting from 212001211101121 its reverse (121101112100212), we obtain a palindrome (90900099000909).

The spelling of 212001211101121 in words is "two hundred twelve trillion, one billion, two hundred eleven million, one hundred one thousand, one hundred twenty-one".