212011112022121 has 8 divisors (see below), whose sum is σ = 212176016886464. Its totient is φ = 211846242786480.

The previous prime is 212011112022079. The next prime is 212011112022173. The reversal of 212011112022121 is 121220211110212.

It is a happy number.

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 212011112022121 - 2⁷ = 212011112021993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212011112029121) 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, 3004786 + ... + 20809876.

It is an arithmetic number, because the mean of its divisors is an integer number (26522002110808).

Almost surely, 2^{212011112022121} is an apocalyptic number.

It is an amenable number.

212011112022121 is a deficient number, since it is larger than the sum of its proper divisors (164904864343).

212011112022121 is a wasteful number, since it uses less digits than its factorization.

212011112022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17814351.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212011112022121 its reverse (121220211110212), we get a palindrome (333231323132333).

The spelling of 212011112022121 in words is "two hundred twelve trillion, eleven billion, one hundred twelve million, twenty-two thousand, one hundred twenty-one".