212011000212121 has 16 divisors (see below), whose sum is σ = 231345068277888. Its totient is φ = 192686992624000.

The previous prime is 212011000212059. The next prime is 212011000212199. The reversal of 212011000212121 is 121212000110212.

It is a cyclic number.

It is not a de Polignac number, because 212011000212121 - 2³⁷ = 211873561258649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212011000212095 and 212011000212104.

It is not an unprimeable number, because it can be changed into a prime (212011060212121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1396414605 + ... + 1396566421.

It is an arithmetic number, because the mean of its divisors is an integer number (14459066767368).

Almost surely, 2^{212011000212121} is an apocalyptic number.

It is an amenable number.

212011000212121 is a deficient number, since it is larger than the sum of its proper divisors (19334068065767).

212011000212121 is a wasteful number, since it uses less digits than its factorization.

212011000212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184112.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212011000212121 its reverse (121212000110212), we get a palindrome (333223000322333).

The spelling of 212011000212121 in words is "two hundred twelve trillion, eleven billion, two hundred twelve thousand, one hundred twenty-one".