212011001123 has 16 divisors (see below), whose sum is σ = 215037111552. Its totient is φ = 209004300000.

The previous prime is 212011001087. The next prime is 212011001149. The reversal of 212011001123 is 321100110212.

212011001123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212011001123 - 2⁸ = 212011000867 is a prime.

It is a super-2 number, since 2×212011001123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212011001098 and 212011001107.

It is not an unprimeable number, because it can be changed into a prime (212011004123) 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 15 ways as a sum of consecutive naturals, for example, 52333448 + ... + 52337498.

It is an arithmetic number, because the mean of its divisors is an integer number (13439819472).

Almost surely, 2^212011001123 is an apocalyptic number.

212011001123 is a deficient number, since it is larger than the sum of its proper divisors (3026110429).

212011001123 is a wasteful number, since it uses less digits than its factorization.

212011001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212011001123 its reverse (321100110212), we get a palindrome (533111111335).

The spelling of 212011001123 in words is "two hundred twelve billion, eleven million, one thousand, one hundred twenty-three".