212001121023 has 4 divisors (see below), whose sum is σ = 282668161368. Its totient is φ = 141334080680.

The previous prime is 212001121021. The next prime is 212001121049. The reversal of 212001121023 is 320121100212.

212001121023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212001121023 - 2¹ = 212001121021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212001120993 and 212001121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001121021) 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 3 ways as a sum of consecutive naturals, for example, 35333520168 + ... + 35333520173.

It is an arithmetic number, because the mean of its divisors is an integer number (70667040342).

Almost surely, 2^212001121023 is an apocalyptic number.

212001121023 is a deficient number, since it is larger than the sum of its proper divisors (70667040345).

212001121023 is an equidigital number, since it uses as much as digits as its factorization.

212001121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70667040344.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212001121023 its reverse (320121100212), we get a palindrome (532122221235).

The spelling of 212001121023 in words is "two hundred twelve billion, one million, one hundred twenty-one thousand, twenty-three".