212011000111121 has 4 divisors (see below), whose sum is σ = 223169473801200. Its totient is φ = 200852526421044.

The previous prime is 212011000111117. The next prime is 212011000111153. The reversal of 212011000111121 is 121111000110212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212011000111121 - 2² = 212011000111117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212011000111096 and 212011000111105.

It is not an unprimeable number, because it can be changed into a prime (212011000111321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5579236845011 + ... + 5579236845048.

It is an arithmetic number, because the mean of its divisors is an integer number (55792368450300).

Almost surely, 2^{212011000111121} is an apocalyptic number.

It is an amenable number.

212011000111121 is a deficient number, since it is larger than the sum of its proper divisors (11158473690079).

212011000111121 is a wasteful number, since it uses less digits than its factorization.

212011000111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11158473690078.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212011000111121 its reverse (121111000110212), we get a palindrome (333122000221333).

Subtracting from 212011000111121 its reverse (121111000110212), we obtain a palindrome (90900000000909).

The spelling of 212011000111121 in words is "two hundred twelve trillion, eleven billion, one hundred eleven thousand, one hundred twenty-one".